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Resolution No. 03-29 CITY OF TIGARD,OREGON RESOLUTION NO.03-QQ A RESOLUTION UPHOLDING THE PLANNING COMMISSION'S FINAL ORDER APPROVING BRETTON WOODS SUBDIVISION(SUBDIVISION(SUB)2003-00001/PLANNED DEVELOPMENT REVIEW (PDR) 2003-00001/ZONE CHANGE (ZON) 2003-00001/ADJUSTMENT (VAR) 2003- 00006/ADJUSTMENT(VAR)2003-00007). WHEREAS, the Planning Commission reviewed this case at a public hearing at its meetings of May 5, 2003 and May 19,2003;and WHEREAS, the Planning Commission approved the applications(Planning Commission Final Order No. 2003-01 PC)based on the findings in the staff report and the testimony heard at the public hearings;and WHEREAS, the City Council held a public hearing on the appeal of the approval on July 8,2003;and WHEREAS, the City Council reviewed the testimony, submittals, and staff report and found that the proposed development as conditioned,would be in compliance with all applicable decision criteria; NOW,THEREFORE,BE IT RESOLVED by the Tigard City Council that: SECTION 1: The Tigard City Council hereby upholds the Planning Commission Final Order for SUB2003-00001/PDR2003-00001/ZON2003-00001 NAR2003-00006NAR2003- 00007 – Bretton Woods Subdivision, subject to the conditions of approval in the Planning Commission Final Order No.2003-01 PC based on the information provided in the public record(Exhibit A). SECTION 2: This resolution is effective immediately upon passage. JJ PASSED: This as day of /I t t (/ (i— 2003. i M y4- i T d i ATTEST: Lr i City Recorder-City of Tigard , RESOLUTION NO.03- a Page 1 EXHIBIT A NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSIONCRY Of T10AQD L'ommunity Development FOR THE CITY OF TIGARD,OREGON SlwpingABetterCammuuiEy A FINAL ORDER APPROVING A LAND USE APPLICATION FOR A SUBDIVISION, ZONE CHANGE, PLANNED DEVELOPMENT, AND TWO ADJUSTMENTS. THE COMMISSION HELD A PUBLIC HEARING TO RECEIVE TESTIMONY ON THIS APPLICATION ON MAY 5,2003,AND A CONTINUANCE ON MAY 19,2003. THE PLANNING COMMISSION HAS BASED THEIR DECISION ON THE FACTS, FINDINGS AND CONCLUSIONS DESCRIBED IN FURTHER DETAIL WITHIN THIS FINAL ORDER. 120 DAYS=7/25/2003 SECTION I. APPLICATION SUMMARY "URBAN SERVICE AREA" FILE NAME: BRETTON WOODS SUBDIVISION CASE NOS.: Subdivision(SUB) SUB2003-00001 Zone Change(ZON) ZON2003-00001 Planned Development Review(PDR) PDR2003-00001 Adjustment(VAR) VAR2003-00006 Adjustment(VAR) VAR2003-00007 APPLICANT: Alpha Engineering Inc. OWNER: Lissy Walter Family Trust Attn: Al Jeck/Matt Sprague By Lissy Walter A. &Dorothy H. 9600 SW Oak Street,Suite 230 16455 SW 108 Avenue Portland,OR 97223 Tigard,OR 97224 PROPOSAL: Approval of a 10-lot Subdivision and Planned Development on 2.34 acres. The lots are proposed to be developed with detached single-family homes. Lot sizes within the development are proposed to be between 5,500 and 6,879 square feet. The applicant is also seeking an Adjustment to the 200 foot cul-de-sac length standard,and an Adjustment to the street improvement requirements of the Tigard Development Code Chapter 18.810. The Adjustment would allow the applicant to construct a curb tight sidewalk as opposed to a sidewalk separated by a planter strip along SW 108 Avenue. ZONING DESIGNATION: R-4,.5: Low-Density Residential District. The R-4.5 zoning district is designed to accommodate detached single-family homes with or without accessory residential units at a minimum lot size of 7,500 square feet. Duplexes and attached single-family units are permitted conditionally. Some civic and institutional uses are also permitted conditionally. i LOCATION: 16455 SW 108th Avenue;WCTM 2S115AA,Tax Lots 1301 and 1400. APPLICABLE i REVIEW CRITERIA: Community Development Code Chapters 18.350, 18.370, 18.380, 18.390, 18.430, 18.510, 18.705, 18.715, 18.725, 18.745, 18.755, 18.765, 18.790, 18.795 and 18.810. c=CT!O1N rr PLANNING CONI + SSION'S DECISION on T1 a Plarinln Cornmisslon finds that the proposed development meets the applicable approval criteria ofhe TgaCornmunity�evetopment Code and fhat.the;proposal will not adversely affect the health, . r t; Q;C; 117,-3 Pl-3ninh'a Commission,therefore,APPROVES th Else Icatlons subjepf to a following conditions of approval: e requested Land ".NOTICE of FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 1 OF 32 CONDITIONS OF APPROVAL THE FOLLOWING CONDITIONS SHALL BE SATISFIED PRIOR TO COMMENCING ANY ONSITE IMPROVEMENTS,INCLUDING GRADING,EXCAVATION AND/OR FILL ACTIVITIES: Submit o the Engineering Department (13rian Rager, , ext. or r_e_v—ie_w__a__nff approval: 1. Prior to commencing onsite improvements, a Public Facility Improvement (PFI) permit is required for this project to cover the street work on 108 Avenue, the infrastructure work inside the subdivision (except for the private water services) and any other work in the public right of-way. Eight(8)sets of detailed public improvemenE plans shall be submitted for review to the Engineering Department. NOTE:these plans are in addition to any drawings required by the Building Division and should only include sheets relevant�o public improvements. Public Facility Improvement PFI) permit plans shall conform to City of Tigard Public Improvement Design Standards,which are available at City Hall and the City's web page(www.ci.tigard.or.us). 2. The PR permit plan submittal shall include the exact legal name, address and telephone number of the individual or corporate entity who will_e designated as the "Permittee", and who will provide the financial assurance for the public improvements. For example,specify if the entity is a corporation, limited partnership, LLC, etc. Also specify the state within which the entity is incorporated and provide the name of the corporate contact person. Failure to provide accurate information to the Engineering Department will delay processing of project documents. 3. Prior to construction, the applicant must obtain a plumbing permit from the Building Division to cover the private water services that will be installed within the private street tract. 4. The applicant shall provide a construction vehicle access and parking plan for approval by the City Engineer. The purpose of this plan is for parking andtraffic control during the public improvement construction phase. All construction vehicle parking shall be provided on-site. No construction vehicles or equipment will be permitted to park on the adjoining residential public streets. Construction vehicles include the vehicles of any contractor or subcontractor involved in the construction of site improvements or buildings proposed by this application,and shall include I the vehicles of all suppliers and employees associated with the project. 5. The applicant shall submit construction plans to the Engineering Department as a part of the Public Facility Improvement permit, which indicate that they will construct a half-street improvement along the frontage of 108 Avenue. The improvements adjacent to this site shall include: A. City standard pavement section for a neighborhood route with bike lanes from curb to centerline equal to 16,but transition to match existing curb at the north end of the site,and transition to provide 18 feet from centerline to curb at the South end of the site; B. pavement tapers needed to tie the new improvement back into the existing edge of pavement shall be built beyond the site frontage; C. concrete curb,or curb and gutter as needed; D. storm drainage,including any off-site storm drainage necessary to convey surface and/or subsurface runoff, E. 5 foot concrete sidewalk with a planter strip, except as approved otherwise by the y adjustment; F. street trees in the planter strip spaced per TDC requirements; j G. street striping; H. streetlight layout by applicant's engineer,to be approved by City Engineer; I. undergroun utilities; J. street signs(if applicable); K. driveway apron(if applicable); and L. adjustments in vertical and/or horizontal alignment to construct SW 108w Avenue in a safe manner,as approved by the Engineering Department. 6. The applicant's construction drawings shall show that the pavement and rock section for the proposed private street(s)shall meet the City's public street standard for a local residential street. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 2 OF 32 7. Final design plans and calculations for the proposed private water quality facility shall be submitted to the Engineering Department (Brian Rager) as a part of the Public Facility Improvement(PFI)permit plans. Included with the plans shall be a proposed landscape plan and maintenance plan. 8. An erosion control plan shall be provided as part of the Public Facility Improvement LPFQ permit drawings. The plan shall conform to the 'Erosion Prevention and Sediment Control DDesign and Planning Manual,December 2000 edition." 9. A final grading plan shall be submitted showing the existing and pro osed contours. The plan p shall detail the provisions for surface drainage of all lots, and show that they will be graded to insure that surface drainage is directed to the street or a public storm drainage system approved by the Engineering Department. For situations where the back portions of lots drain away from a street and toward adjacent lots, appropriate private storm drainage lines shall be reviewed and approved during construction plan review. The applicant's arborist shall be on site inspecting the work as it occurs. 10. The applicant shall obtain a 1200-C General Permit issued by the City of Tigard pursuant to ORS 468.740 and the Federal Clean ater Act. Submit to the Planning Department(Brad Kilby,639-4171,ext.2434)for review and approval: 11. The applicant shall comply with the recommendations of the arborist report, and shall provide the City Arborist with a construction sequence including installation and removal of tree protection devices,clearing, grading,and paving. 12. Prior to site work,the applicant shall submit a complete set of construction documents with the tree locations for the City Arborists review. Should additional trees need to be removed, mitigation shall be recalculated. 13. The applicant shall notify the City Arborist when tree protection measures are in place so that he may verify that the measures will function properly prior to construction. THE FOLLOWING CONDITIONS SHALL BE SATISFIED PRIOR TO APPROVAL OF THE FINAL PLAT: � � !r t the Engineering Department (Brian ager, , ext. or review an approval:? 14. Priorto approval of the final plat, the applicant shall pay an addressing fee in the amount of $360.00. (STAFF CONTACT: Shirley Treat,Engineering). 15. The face of the final plat shall show a ROW dedication on 108°i Avenue to provide 29 feet from the centerline. _ 16. The applicant shall cause a statement to be placed on the final plat to indicate that the proposed private street(s)will be jointly owned and maintained by the private property owners who abut and take access from it(them). 17. Prior to approval of the final plat, the applicant shall prepare Conditions, Covenants and Restrictions (CC&R's)for this project,to be recorded with the final plat, that clearly lays out a maintenance plan and agreement for the proposed private street(s). The CC&R's shall obligate the private property owners within the subdivision to create a homeowner's association to ensure regulation of maintenance for the street(s). The applicant shall submit a copy of the CC&R's to the Engineering Department(Brian Rager)prior to approval of the final plat. 18. Prior to approval of the final plat, the applicant shall demonstrate that they have formed and incorporated a home-wrier's association. 19. Prior to approval of the final plat,tlp applicant shall pay$391.00 to the City for the striping of the bike lane along the frontage of 108 Avenue. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 3 OF 32 20. The applicant shall either place the existing overhead utility lines along SW 108"' Avenue underground as apart of this project,or they shall pay the fee In-lieu of undergrounding. The fee shall be calculatedbythe frontage of the site that Is parallel to the utility lines and will be$27.50 pper lineal foot. If the fee option Is chosen,the amount will be$4,125.00 and it shall be paid prior to approval of the final plat. 21. The applicant shall cause a statement to be placed on the final plat to indicate that the proposed private water quality/detention facility will be jointly owned and maintained by the developer or by the future homeowners within the subdivision. 22. Prior to approval of the final plat, the applicant shall prepare Conditions, Covenants and Restrictions (CC&R's)for this project, to be recorded with the final plat, that clearly lays out a maintenance plan and agreement for the proposed private water quality/detention facility. The CC&R's shall obligate the private roperty owners within the subdivision to create a homeowner's association to ensure regulation o maintenance for the facility. The applicant shall submit a copy of the CC&R's to the Engineering Department(Brian Rager)prior to approval of the final plat. 23. The appplicant's final plat shall contain State Plane Coordinates on two monuments with a tie to the City s global positioning system(GPS)geodetic control network(GC 22}. These monuments shall be on the same line and shall be of the same precision as required for the subdivision plat boundary. Along with the coordinates, the plat shalt contain the scale factor to convert ground measurements to grid measurements and the angle from north to grid north. These coordinates can be established by: GPS tie networked to the City's GPS survey. By random traverse using conventional surveying methods. 24. Final Plat Application Submission Requirements: A. Submit for City review four(4)paper copies of the final plat prepared by a land surveyor licensed to practice In Oregon,and necessary data or narrative. B. Attach a check in the amount of the current final plat review fee (Contact Planning/Engineering Permit Technicians,at(503)639-4171,ext.426). C. The final plat and data or narrative shall be drawn to the minimum standards set forth by the Oregon Revised Statutes(OR%92.05),Washington County,and by the City of Tigard. D. The r_igght-of-way dedication for 108 Avenue shall be made on the final plat. E. MOTE: Washington County will not begin their review of the final plat until they receive notice from the l=ngineering Departmeni indicating ig teat the City has reviewed the final plat and submitted comments to the applicant's surveyor. F. After the City and County have reviewed the final plat,submit two mylar copies of the final plat for City Engineer signature (for partitions), or City Engineer and Community Development Director signatures(for subdivisions). Submit to the Planning Department(Brad Kilby,639-4171,ext.2434)for review and approval: 25. Prior to final plat approval,the applicant shall revise the plat to accommodate a minimum of 25 feet of frontage for all lots within the development. ! 26. Concurrent with final plat approval,the applicant shall convey title for the proposed open space i to a homeowner's association in accordance with the requirements of Section i 18.350.110.A.2.b of the Tigard Development Code. THE FOLLOWING CONDITIONS SHALL BE SATISFIED PRIOR TO ISSUANCE OF BUILDING PERMITS: Submit to the Engineering Department (Brian Rager, , ext. for review an approval: 27. Prior to issuance of building permits,the applicant shall provide the Engineering Department with a "photomylar"copy of the recorded final plat. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 4 OF 32 28. The City Engineer may determine the necessity for, and require submittal and approval of, a construction access and parking plan for the home building phase. If the City Engineer deems such a plan necessary,the applicant shall provide the plan prior to issuance of building permits. 29. Prior to issuance of building permits within the subdivision, the City Engineer shall deem the public improvements substantially complete. Substantial completion shall be when: 1)all utilities are installed and inspected for compliance, including franchise utilities, 2) all local residential streets have at least one lift of asphalt, 3) any off-site street and/or utilify improvements are substantially completed, and 4)all street lights are Installed and ready to be energized. (NOTE: the City apart from this condition,and in accordance with the City's model home policy may issue model home permits). 30. Prior to issuance of building permits,the applicant shall provide the City with as-built drawings of the public improvements as follows: 1)3 mil mylar,2))a diskette of the as-builts in"DWG"format, if available;otherwise "DXF"will be acceptable,and 3)the as-built drawings shall be tied to the City's GPS network. The applicant's engineer shall provide the City with an electronic file with points for each structure (manholes, catch basins, water valves hydrants and other water system features)) in the development, and their respective X and Y State Plane Coordinates, referenced to NAD 83(91). Submit to the Planning Department(Brad Kilby, 639-4171,ext.2434)for review and approval: 31. Prior to issuance of building permits for structures on' the individual lots within this development, the applicant shall demonstrate compliance with the height requirement of the underlying zone. The requirement calls for a 30-foot maximum height for primary units and 15 feet maximum for all accessory structures. 32. Prior to the issuance of building permits on the individual structures within this development, the applicant shall demonstrate compliance with the following setbacks on all lots. Front Yard: 12 feet for the primary structure and 20 feet for garages. Rear Yard: 15 feet. Side yard:5 feet. 33. At the time of application for building permits for individual homes, the applicant shall demonstrate that each site will be accessed by a minimum 10-foot-wide paved access. 34. At the time of submittal for building permits for individual homes within the development, the developer shall submit materials demonstrating that one(1)off-street parking space,which meets miniaturn dimensional requirements and setback requirements as specified In Title 18, will be provided on-site for each new home. 36. Prior to the issuance of building permits, the developer shall sign a copy of the City's sign compliance agreement. IN ADDITION THE APPLICANT SHOULD BE AWARE OF THE FOLLOWING SECTIONS OF THE C6MMUNITY DEVELOPMENT CODE; THIS IS NOT AN EXCLUSIVE LIST: 18.430.080 Im rovement A reement: Be ore uIty,approva Is certified on t e final plat, and before approved construction plans are issued by the City,the Subdivider shall- 1. Execute and file an agreement with the Ci En 'neer s ec i 9 City g p ifying the period within which all j required improvements and repairs shall be completed; and 2. Include in the agreement provisions that if such work is not completed within the period specified, the City may complete the work and recover the full cost and expenses from the subdivider. The agreement shall stipulate improvement fees and deposits as may be required to be paid and may also orovlde for the construction of the improvements In stages and for the extension of time under specific conditions therein�s ated in the contract. 18.430.090 Bond: .s requir 15—y-Section 18.430.080, the subdivider shall file with the agreement an assurance of performance supported by one of the following: NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 5 OF 32 1. An irrevocable letter of credit executed by a financial institution authorized to transact business in the State of Oregon; 2. A surety bond executed b a surety company authorized to transact business in the State of Oregon which remains in force until the surety company is notified by the City in writing that it may be terminated; or 3. Cash. The subdivider shall furnish to the City Engineer an itemized improvement estimate, certified by a registered civil engineer, to assist the City Engineer in calculating the amount of the performance assurance. The subdivider shall not cause termination of nor allow expiration of said guarantee without having first secured written authorization from the City. 18.430.100 Filing and Recording: It In t3u clays ot the Uty review and approval, the applicant shall submit the final plat to the County for signatures of County officials as required by ORS Chapter 92. Upon final recording with the County,the applicant shall submit to the City a mylar copy of the recorded final plat. 18.430.070 Final Plat AoDligation Submission Re uirements: hree copies of the subdivision plat prepared by a land surveyor licensed to practice in Oregon, and necessary data or narrative. The subdivision plat and data or narrative shall be drawn to the minimum standards set forth by the Oregon Revised Statutes(ORS 92.05),Washington County,and by the City of Tigard. STREET CENTERLINE MONUMENTATION SHALL BE PROVIDED AS FOLLOWS: Centerline Monumentation In accordance with regon Revised Statutes 92.060, subsection (2), the centerline of all street and roadway rights-of-way shall be monumented before the City accepts a street improvement. The following centerline monuments shall be set: 1 A!!centerline-centerline intersection points; 2. All cut-de-sac center points; and 3. Curve points,beginning and ending points (PC's and PTs). All centerline monuments shall be set during the first lift of pavement. Monument Boxes Required Monument boxes conforming to City standards will be required around all centerline intersection points, cul-de-sac center points,and curve points. The tops of all monument boxes shall be set to finished pavement grade_ 18.810 Street&Utility Improvement Standards: i i 18.810.120 Utilities i utliity Imes Inc uding, but not limited to those required for electric, communication, lighting and cable television services and related facilities shall be placed underground, except for surface-mounted transformers, surface-mounted connection boxes, and meter cabinets which may be placed above ground, temporary utility service facilities during construction, high capacity electric lines operating at 50,000 volts or above. t 18.810.130 Cash or Bond Required ATF—improvements Installed y the subdivider shall be guaranteed as to workmanship and material for a period of one year following acceptance by the City. NOTICE OF FINAL ORDER NO.2003-01 PC BY.THE PLANNING COMMISSION PAGE 6 OF 32 Such guarantee shall be secured by cash deposit or bond in the amount of the value of the improvements as set by the City Engineer. The cash or bond shall comply with the terms and conditions of Section 18.810.180. 18.810.150 Installation Prerequisite o an t,slon improvements, Including sanitary sewers, storm sewers, streets, sidewalks, curbs, lighting or other requirements shall be undertaken except after the plans therefor have been approved by the City,permit fee paid and per issued. 18.810.180 Notice to Ci Re uired VVc—)rR shall not begin until t e Ityas been notified in advance. If work is discontinued for any reason,it shall not be resumed until the City is notified. 18.810.200 En ineer's Certification e an Ivl els engineer shall provide written certification of a form provided by the City that all improvements, workmanship and materials are in accord with current and standard engineering and construction practices, and are of high grade, prior to the City acceptance of the subdivision's improvements or any portion thereof for operation and maintenance. SECTION Ill. BACKGROUND INFORMATION Site History The property is currently developed with one single-family residence and a couple of small outbuildings. According to the applicant,the site was previously a Christmas tree farm. The way that the trees have been planted would certainly indicate that this was the case. A search of city records found no previous land use cases associated with this parcel. V�icinit Information: he pfi--pr ject site is located within the City's Urban Service Area. The site is located on the west side of SW 108th Avenue and south of SW Durham Road. The property is surrounded on all sides by single-family residences on lots that vary in size. There is a stream on the property that is located directly west of this property, and a steep slope on the southwesterly corner of the property. The areas directly south of this property are zoned R-2 which calls for a minimum lot size of 20,000 3quara feat. i hey are also part of a planned development. Pro osal Information: he app scant Is proposing to subdivide the parcel into ten lots for single-family residences. Because of the trees and slopes on the site,the applicant has requested a planned development to allow them to vary the underlying zoning standards to develop around these features. The applicant is also requesting an adjustment to allow a curb tight sidewalk as opposed to a sidewalk separated from the travel surface by a planter strip, and an adjustment to allow the cul-de-sac to be longer than 200 feet. The applicant has also applied to the City for annexation. The annexation is being reviewed under a separate process. ! SECTION IV. DECISION MAKING PROCEDURES PERMITS AND USE i USE CLASSIFICATION: SECTION 18.130.020 rsts the use categories. The applicant is seeking aFproval of a 10-lot subdivision on 2.34 acres. The lots are to be developed with detached single-fami y homes. The existing single-family home and outbuildings are to be demolished. Lot sizes within the development are between 5,500 and 6,879 square feet. The applicant is also proposing to set aside two open space tracts,and a third tract that would encompass the private street to serve this development. This use is classified in Community Development Code (CDC) Chapter 18.130 (Use Classifications) as Household Living. The site is located within the R-4.5 Low Density Residential District. Table 18.510.1 lists household living as a permitted use in the R-4.5 zone . Planned Developments are permitted in all districts. The applicant has applied for conceptual and detailed planned development approval in conjunction with the subdivision. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 7 OF 32 SUMMARY LAND USE PERMITS: CHAPTER 18.310 e Ines t e ec sion-ma Ing type to is t e an -use application is assigned. This is a Planned Development/Subdivision,which is defined as a Type 111-PC Application. Adjustments are typically Type II, however,when applications are heard concurrently, the highest decision making body will make the decision on all matters. DECISION MAKING PROCEi3URES:CHAPTER 18.390 escn s e ecision-ma ing proce, ures. Type ill procedures apply to quasi-judicial permits and actions that contain predominantly discrettona% approval criteria. Type III-PC actions are decided by the Planning Commission with appeals to t e City Council. SECTION V. NEIGHBORHOOD COMMENTS The Tigard Community Development Code requires that property owners within 500 feet of the subject site be notified of the proposal, and be given an opportunity for written comments and/or oral testimony prior to at decision being made. In addition, the applicant is required to post the site with notice of the public hearing. Staff has verified that the site is posted. Staff has not received any written comments from any neighbors about this application. About a month ago, the owner of a property in the subdivision directly north of this property came to the office, reviewed the plans, and met with the City Arborist on site to discuss potential problems with the trees that were to be removed. The owner has not formally responded to the application, but indicated that he would probably attend the hearing. We also discussed the buffering requirements with the property owners directly west of the site. SECTION VL APPLICABLE REVIEW CRITERIA AND FINDINGS GENERAL PLANNED DEVELOPMENT STANDARDS:CHAPTER 18.350 The applicant has requested a Planned Development (PD) overlay zone change for the subject property. The PD overlay requires developers to follow the Planned Development process for any proposal on affected sites. The Planned Development chapter provides for flexibility in development design and allows deviation from certain standards of the base zone. The following addresses compliance with the process and applicable base zone standards. The Planned Development Process: ection 8.35 0 0 states that there are three elements to the planned development approval process,as follows: • The approval of the planned development overlay zone; • The approval of the planned development concept plan; and The approval of the detailed development plan. This application is for all three elements of the planned development process, overlay zone,concept plan,and detailed plan. A licabilittyyOf The Base Zone Develoioment Standards* Section .350requires compliance to specific development standards: The provisions of the base zone are applicable as follows: Lot dimensional standards: The minimum lot size, lot depth and lot width standards shall not apply except as related to the density computation under Chapter 18.715; NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 8 OF 32 The lot sizes range between 5,500 and 6,879 square feet, and there are three tracts proposed to accommodate the private street,the drainage facility,and the proposed open space. The required lot size for the R-4.5 zoning district is 7,500 square feet unless an applicant specifically requests different lot sizes through the Planned Development (PD) process. The pro osed lot widths have been varied, but all are 50 feet or wider on the building portion of the lots. Lot depths range from approximately 110-149 feet deep. The applicant has identified and detailed the requested lot dimensional standards for this development, and the minimum and maximum density requirements have been satisfied as discussed later in this report. Site coverage: The site coverage provisions of the base zone shall apply; There is no site coverage requirement in the R-4.5 zone;therefore,this criterion is not applicable. Building height: The building height provisions shall not apply; and The height restriction does not apply within a Planned Development as long as the developer proposes an alternative that is approved. In this case,the develo er has not requested an alternative height requirement, but has indicated that the lots will be developed with single-family residences. Because is not proposed to the contrary, development within this development will be subject to the height requirements of the underlying zone. FINDING: The applicant has not proposed a height requirement for development within the Bretton Woods Planned Development. CONDITION: Prior to issuance of building permits for structures on the individual lots within this development, the applicant shall demonstrate compliance with the height requirement of the underlying zone. The requirement calls for a 30-foot maximum height for primary units and 15 feet maximum for all accessory structures. Structure setback provisions: Front yard and rear yard setbacks for structures on the perimeter of the project shall be the same as that required by the base zone unless otherwise provided by Chapter 18.360; The applicant has provided a site plan that illustrates building envelopes within the development. The applicant has proposed to maintain a 15-foot rear yard for all structures on the perimeter of the F There are no fm font yards on the perimeter Of the project. All lots have front yards that face the private street. The applicant has requested that the required front yards writ in the devc1opment be adjusted to 12 feet for primary structures and porches. They have Indicated that the setback to the face of garage is proposed to remain at 20 feet. This criterion is satisfied. The side yard setback provisions shall not apply except that all detached structures shall meet the Uniform Building Code(UBC) requirements for fire walls; The applicant has not proposed any alternative side yard setbacks. The side yard setback is proposed to be 5 feet for all structures In this development. This criterion has been met. Front yard and rear yard setback requirements in the base zone setback shall not apply to structures on the interior of the project except that: (1) A minimum front yard setback 'OT 20 feet is required for any garage structure which opens facing a street-(2))A minimum front yard setback of eight feet is required for any garage opening for an attached single-family dwelling facing a private street as long as the required off-street parking spaces are provided All homes are proposed with a garage setback of at least 20 feet, and the applicant has only requested reduced front yard setbacks for this development. All other setbacks that are required in the underlying zone will be imposed, as there have been no requests for deviation. This criterion has been met. FINDING: The applicant has requested a reduced front yard setback of 12 feet, but has maintained a 20 foot setback to the face of the garage. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 9 OF 32 CONDITION:Prior to the issuance of building permits on the individual structures within this development, the applicant shall demonstrate compliance with the following setbacks on all lots. Front Yard: 12 feet for the primary structure and 20 feet for garages. Rear Yard: 15 feet. Side yard:5 feet. Other rovisions of the base zone: All other provisions of t e base zone shall apply except as modified by this chapter. Any additional provisions of the base zone are discussed within the body of this report or will be reviewed during the building permit phase. FINDING: The base zone standards that are related to the previously discussed criteria have been satisfied. PD Approval Criteria: 18.350.100 Specific fanned develo mentapproval criteria. The Commission shall make findings that the 0 owing criteria are satis ie wen approving or approving with conditions,the concept plan. The Commission shall make findings that the criteria are not satisfied when denying an application. All the provisions of the land division provisions, Chapters 18.410, 18.420 and 18.430, shall be met; The applicant has applied to subdivide the property concurrently with the planned development approval; therefore, all subdivision criteria must be satisfied. Compliance with the subdivision approval criteria is discussed in greater detail in Section 18.430. The application has met or can be conditioned such that the subdivision provisions are satisfied. This criterion is satisfied. Except as noted, the provisions of the following chapters shall be utilized as guidelines. A planned development need not meet these requirements where a development plan provides alternative designs and methods, if acceptable to the Commission, that promote the purpose of this section. in each case, the applicant must provide findings toustify the modification of the standards in the chapters listed in Subsection 3 below. The developer may choose to provide or the commission may require additional open space dedication and/or provision of additional amenities,landscaping or tree planting. v1-pte 1v.7 155 Dansiay Cor.putatiorl arid Limitations. Iiniess authorized below, der-C it - - H be governed by the density established in the underlyingg zoning district. The Cornm'ission may further authorize a density bonus not to exceed 10% as an incentive to increase or enhance open space, architectural character and/or site variation incorporated into the development. These factors must make a substantial contribution to objectives of the planned development. The degree of distinctiveness and the desirability of variation achieved shall govern the amouqt of density increase which the Commission may approve according to the following: A maximum of 3% is allowed for the provision of undeveloped common space; i . A maximum of 3% is allowed for landscaping; streetscape development; developed open spaces, plazas and pedestrian pathways and related amenities; recreation area i development;and/or retention of existing vegetation; i . A maximum of 3% is allowed for creation of visual focal points; use of existing physical amenities such as topograpphy,view,and sun/wind orientation; A maximum of 3% quality of architectural quality and style; harmonious use of materials; innovative building orientation or building grouping; and/or varied use of housing types. The applicant has not requested any density bonuses. Density will be discussed later in this report under Chapter 18.715. Chapter 18.730,Exceptions to Development Standards; None apply. This criterion is not applicable. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 10 OF 32 Chapter 18.795,Visual Clearance Areas; The proposal indicates that there are three trees that are scheduled to remain and are within the visual clearance area. During a recent visit to the site by staff, the visual clearance area was observed and there were no apparent obstructions. All trees within the visual clearance area must be maintained in accordance with the requirements of Chapter 18.795, and any violations of this chapter will be remedied through code enforcement. Chapter 18.745, Landscaping and Screening; This is a single-family proposal adjacent to single-familyhomes. As such,there are no requirements for screening or buffering from neighboring propperties. However,as discussed later in this report,the applicant is required to landscape at least 20% of the site within a Planned Development. Thg applicant has provided a landscape plan for Tracts A and C, and a street tree plan for SW 108 Avenue and Tract B. These plans have been discussed in further detail elsewhere in this report, and staff has recommended conditions to ensure that the criterion is satisfied where the plans have been found to be deficient. Chapter 18.765,Off-street Parking and Loading Requirements; The applicant has proposed that all homes will be provided with 2-car garages and at least 20 feet in front of the garages, which should provide more than enough parking for the development. The applicant has also designed the street such that it will have turnouts for extra parking. The minimum requirement for household living is one space for every unit. This criterion is satisfied. Chapter 18.705,Access, Egress and Circulation; and The applicant has indicated in the narrative that a driveway that is at least 15-feet wide will serve each dwelling. The minimum required width for a driveway is 10,feet. The proposed private street improvements are evaluated under discussion of compliance with street and utility standards in Section 18.810 later in this report. Chapter 18.780,Signs. No signs are proposed in conjunction with this development. Any future signage will be subject to the sign permit requirements in Chapter 18.780. ® FINDING: Staff finds that the proposed development is consistent with the guidelines listed in the Planned Development Section 18.350.100.13.2. FINDING: There has been a proliferation of sign violations from new subdivisions. In accordance with a new policy adopted by the Director's Designee, all new subdivisions must enter into a sign compliance agreement to facilitate a more expeditious court process for citations. CONDITION:Prior to the issuance of building permits,the developer shall sign a copy of the City's sign i compliance agreement. In addition,the following criteria shall be met: i Relationship to the natural and physical environment: T et streets, buildings and other size elements�al!be designed and located to preserve the existing trees,topography and natural drainage to the greatest degree possible; The site is constrained naturally by.steep slopes on the southwest end of theproperty, the very large trees throughout the site, and a drainageway on an adjacent property south oAthe site. The applicant has proposed a private street to develop around several very large trees that are along the north border of the site, and has proposed two large open space tracts to protect the remaining trees and steeI slopes on site. The Cif Arborist has questioned whether the location of the private street would in tact protect the large trees on the north border of the site. His concerns are discussed in more detail under the tree preservation section of this report. The applicant has made a conscientious attempt to design the development around the natural features on site. This criterion is satisfied. NOTICE OF FINAL ORDER 140.2003-01 PC BY THE PLANNING COMMISSION PAGE 11 OF 32 Structures located on the site shall not be in areas subject to ground slumping and sliding; There is no evidence within the record or within any city record related to this property to suggest that the property is located within an area subject to ground slumping and sliding. The applicant has proposed a large open space tract at the south end of the property. The combination of the area between the structures and the retention of those large trees on the slope wiii help to ensure that the integrity of that slope is not compromised. There shall be adequate distance between on-site buildings and other on-site and off-site buildings on adjoining properties to provide for adequate light and air circulation and for fire protection; The current proposal does not call for any reduced setbacks along the rear and side yard setbacks. With the exception of the front-yard setback, the new homes will comply with the underlying zone setbacks. This criterion is satisfied. The structures shall be oriented with consideration for the sun and wind directions, where possible;and The proposed structures are oriented to the south. Site constraints do not allow further building orientation for sun and wind. Trees preserved to the extent possible. Replacement of trees is subject to the requirements of Chapter 18.790,Tree Removal. Trees are preserved to the maximum extent possible for this proposal, given the density and infrastructure needs of the developable portion of the site. For a more complete discussion of the tree preservation requirements for this proposal, refer to the discussion of compliance with the requirements of Chapter 18.790. Bufferina.screening and com atibili between ad'oinin uses: Bu ering shallbe provided etween different types o and uses, e.g., between single-family and multi-family residential,and residential and commercial uses; Because the proposed development is for single-family homes in an area characterized by single- family development, the Tigard Development Code (TDC) does not require any additional buffering. The applicant has proposed to landscape the open space tracts, the drainage tract, and maintain a large portion of the large trees throughout the site. This criterion is inapplicable. In addition to the requirements of the buffer matrix(Table 18.745.1), the following factors shall be considered in determining the adequacy and extent of the buffer required under Chapter 18.745: The purpose of the buffer, for example to decrease noise levels, absorb air pollution, filter dust,or to provide a visual barrier; The size of the buffer needs in terms of width and height to achieve the purpose; The direction(s)from which buffering is needed; The required density of the buffering; and Whether the viewer is stationary or mobile. i . As stated previously, there is no requirement for buffering between existing single-family homes and i new single-family homes. This criterion is inapplicable. On-site screening from view from adjoining properties of such activities as service areas, storage areas, parking lots and mechanical devices on roof tops shall be provided and the following factors shall be considered in determining the adequacy of the type and extent of the screeningg. (a)What needs to be screened; (b)The direction from which it is needed; and (c)Whether the screening needs to be year-round. The applicant has proposed screening of the private road along the north property line. There are no proposed storage areas or other proposed activities that would require screening under this proposal. This criterion is satisfied. NOTICE OF FINAL ORDER NO.2003-01.PC BY THE PLANNING COMMISSION PAGE 12 OF 32 Priv and noise: on-rest entia structures which abut existing residential dwellings shall be located on the site or be designed in a manner, to the maximum degree possible,to protect the private areas on the adjoining properties from view and noise; Private outdoor area -- multi-family use: Shared outdoor recreation areas --multi-family use: These criteria relate to non-residential or multi-family structures and are not applicable to the proposed single-family development. Access and circulation: he num er of allowed access points for a development shall be provided in Chapter 18.705; As discussed later in this report,the proposed development does not entire)y comply with the access standards in Chapters 18.705 and 18.810. The applicant has requested two adjustments that are discussed later in this report. All circulation patterns within a development must be designed to accommodate emergency vehicles;and Referral comments from Tualatin Valley Fire and Rescue indicate that the proposed circulation system for the development is acceptable if their conditions are addressed. See Section VIII of this report for more details. Provisions shall be made for pedestrian and bicycle ways if such facilities are shown on an adopted plan. The project fronts on SW 108th Ave., which is a neighborhood route with bike lanes in the Transportation Systems Plan. The applicant has also proposed a public pedestrian/bicycle easement through the site to facilitate future development of a pedestrian connection tR the Tualatin River if it is needed. The applicant has proposed a half-street improvement on SW 108 Avenue that will include construction of a sidewalk along the frontage of this project and the applicant has been conditioned to contribute money toward the future costs of striping the bike lanes. This criterion does not apply. Landsca in and o ens ace: Residential eve opment: In addition to the requirements of subparagraphs (4) and (5) of section a of this subsection,a minimum of 20 percent of the site shall be landscaped; The open space and drainage tracts of this proposal constitute 27% of the site area. The applicant has provided a landscape plan for these areas. It is anticipated that a portion of each lot will be landscaped by the homeowner. The project will exceed the minimum 20% landscape criteria. The planting plan involves plantings within Tracts A and C, and includes a mixture of trees, shrubs, and ground cover. This criterion has been met. Public transit: rovisions for public transit may be required where the site abuts a public transit route. The required facilities shall be based)on: ' The location of other transit facilities in the area; and The size and type of the proposed development i The required facilities shall be limited to such facilities as: A waiting shelter; A turn-out area for loading and unloading;and Hard surface paths connecting the development to the waiting area The nearest bus facility is% a mile from the site. This site does not abut a public transit route, and this criterion is not applicable. Signs: No signage is proposed with this application, but refer to the previous condition. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 13 OF 32 parking: All parking and loading areas shall be generally laid out in accordance with the requirements set forth in Chapter Chapter 18.765; Up to 50% of required off-street parking spaces for single-family attached dwellings may be =provided on one or more common parking lots within the planned development as long as single-family lot contains one off-street parking space. Parking can comply with all applicable requirements of Chapter 18.765. Drana a:: AIt drainage provisions shall be generally laid out in accordance with the requirements set forth in Chapter 18.775,and the criteria in the adopted 1981 master drainage plan; Storm drainage complies, or will be conditioned to comply with applicable City of Tigard and Clean Water Services (CWS) requirements. For a more detailed discussion of storm drainage, see the discussion of compliance with the requirement of Chapter 18.810 later in this report. Flood Iain dedication: Where an and/or development is allowed within or adjacent to the 100-year floodplain,the City shall re qyuire consideration of the dedication of sufficient open land area for a greenway adjoining an wi .thin the floodplain: This area shall include portions of a suitable elevation for the construction of a pedestnan/bicycle pathway with the floodplain in accordance with the adopted pedestrian bicycle pathway plan. No areas within the 100-year floodplain exist on the site. This criterion is not applicable. FINDING: The proposed development complies, or can be conditioned to comply with all planned development approval criteria contained in Section 18.350.100 of the Tigard Development Code. Shared Open Space: Reuirements for shared open sace: here the open space is designated on the plan as common open space the following applies: The open space area shall be shown on the final plan and recorded with the Director; and The open space shall be conveyed in accordance with one of the following methods: By dedication to the City as publicly-owned and maintained as open space. Open space proposed for dedication to the City must be acceptable to it with regard to the size, shape, ocation,improvement and budgetary and maintenance limitations; By leasing or conveying title (including beneficial ownership) to a corporation, home association or other legal entity,with the City retaining the development rights to the property. i The terms of such lease or other instrument of conveyance must include provisions suitable to the City Attorney for guaranteeing the following: The continued use of such land for the intended purposes; Continuity of property maintenance- When appropriate,the availability of funds required for such maintenance; Adequate insurance protection;and Recovery for loss sustained by casualty and condemnation or otherwise. By any method which achieves the objectives set forth in Subsection 2 above of this section. + The applicant has indicated that the open space areas on the site will be conveyed to the developments' Homeowner's Association. To ensure compliance with City of Tigard standards, the following condition shall apply: NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 14 OF 32 CONDITION:Prior to final subdivision platapproval, the applicant shall convey title for the proposed open space to a homeowners association in accordance with the requirements of Section 18.350.110.A.2.b of the Tigard Development Code. S ectal adjustments 18.370: Adjustments to eve opment standards within subdivisions (Chapter 18.430). The Director shall consider the application for adjustment at the same time he/she considers the preliminary plat. An adjustment may be approved, approved with conditions, or denied provided the Director finds: The applicant is requesting an adjustment to the street improvement standards on SW 108'"Avenue, and an adjustment to the cul-de-sac length standard. Under the new Transportation System Plan,the development is required to provide a planter strip between the curb and sidewalk. The applicant is requesting an adjustment to the standarWo allow a meandering sidewalk in order to protect some existing trees that are close to SW 108 Ave. Under current guidelines, cul-de-sacs are not to exceed 200 feet in length without an adjustment. These adjustments are discussed simultaneously in the following discussion. There are special circumstances or conditions affecting the property, which are unusual and peculiar to the land as compared to other lands similarly situated; In the case of the curb tight sidewalk, the site plan indicates that there are several large trees that would be adversely impacted if the sidewalk was not curb tight. There are several properties along this street that have developed with curb tight sidewalks, and the applicant has proposed to meander the sidewalk in which parts of the sidewalk will be separated by a planter strip. This criterion is satisfied. In reference to the ad1Lstment to allow the cul-de-sac length to exceed 200 feet as opposed to the proposed 500 feet. There are specific topography constraints as well as existing development patterns that limit the ability of the applicant to extend a road all the way through the development and still realize the density with detached single-family homes. This criterion is satisfied The adjustment is necessary for the proper design or function of the subdivision; The adjustment for the curb tight sidewalk standard is necessary for the design of this subdivision. The adjustment would be needed if the access were to be placed anywhere along the frontage of the property. This cr it3rion is satisfied. The adjustment requested for the cul-de-sac length is necessary to provide access to lots 6-10 of this subdivision. The applicant has proposed a turn around to serve emergency equipment and garbage trucks. This criterion is satisfied. The granting of the adjustment will not be detrimental to the public health, safety,and welfare or injurious-to the rights of other owners of property; and Grantinq of the adjustments would not be detrimental to the health, safety and welfare, nor, is there any evidence to suggest that the adjustments would be injurious to the rights of other owners of property surrounding the site. The Fire District has reviewed and commented and offered no ' objection to this adjustment. j The adjustment is necessary for the preservation and enjoyment of a substantial property right because of an extraordinary hardship,which would result from strict compliance with the regulations of this title. In order to develop.the property in the proposed manner, the applicant would need to request the adjustments to the improvement standards for street intersections and the cul-de-sac length. These adjustments are necessary in order to develop the property as proposed. FINDING: The criteria for granting the adljustments to the street design standards and the cul-de- sac length have been satisfied. The adjustments are requested to accommodate this development specifically because of the naturescape and shape of the lot, as well as the consideration of pre-existing development patterns in the area that would not permit compliance with the applicable chapters of the TDC. NOTICE OF FINAL_ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 15 OF 32 Zone Change: Standards for Making Quasi-Judicial Decisions:Chapter 18.380 recommendationon or to approve approve with con 'tions or to deny an application for a quasi-judicial zoning map amendment shalI be based on all of the following standards: Demonstration of compliance with all applicable comprehensive plan policies and map designations; The development code implements the goals and policies of the Comprehensive Plan andplanned developments are permitted in all districts when they meet the code criteria of the Development Code. This criterion is satisfied. Demonstration of compliance with all applicable standards of any provision of this code or other applicable implementing ordinance; and According to the analysis of sections below,the proposed zone Chane is,or has been conditioned to ensure compliance with the requirements for planned development YPD) in Section 18.350.020 and all other applicable requirements. Evidence of change in the neighborhood or community or a mistake or inconsistency in the comprehensive plan or zoning map as it relates to the property which is the subject of the development application. There is no change in circumstances or inconsistencies to the comprehensive plan or zoning map that warrants a zone change from the underlying zone. However, a zone change is necessary to place the PD overlay designation on the property. This criterion is inapplicable. FINDING: The proposal satisfies the criteria for a zone change to place the Planned Development Overlay zoning onto the property. Preliminary Subdivision Plat Approval Criteria: 18.430.040 Approval criteria: The Approval Authority may approve, approve with conditions or deny a preliminary plat based on the following approval criteria: The proposed preliminary plat complies with the applicable zoning ordinance and other applicable ordinances and regulations; As illustrated in this report,the proposed plat complies with the zoning ordinance and other applicable ordinances and regulations. The proposed plat name is not duplicative or otherwise satisfies the provisions of ORS Chapter 92; The applicant reserved the name "Bretton Woods"with Washington County in January of 2003. This criterion is satisfied. The streets and roads are laid out so as to conform to the plats of subdivisions and maps of major partitions already approved for adjoining property as to width, general direction and in all other respects unless the City determines it is in the public interest to modify the street or road pattern;and There are no street stubs to this property from adjacent properties and existing development and topography limits the ability for this applicant to provide stubs for future road service to adjacent properties. This criterion has been met. An explanation has been provided for all common improvements. The applicant has provided an explanation for all common improvements. FINDING: The proposed development complies with all preliminary subdivision criteria. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 16 OF 32 ZONING DISTRICT Residential Zonino District: Section 18.510.020 1 no K-4.5 zoning district is designed to accommodate detached single-family homes with or without accessory residential units at a minimum lot size of 7,500 square feet. Duplexes and attached single-family units are permitted conditionally. Some civic and institutional uses are also permitted conditionally. Planned Developments are permitted in all districts provided the application satisfies all applicable criteria. Develo rent Standards: Section 18.510.050 States that Development standards in residential zoning is r.c s are contained in I able 18.510.2 below: The subject site and the surrounding properties are all designated R-4.5 Low-Density Residential. EXCERPT FROM TABLE 18.510.2 DEVELOPMENT STANDARDS IN RESIDENTIAL ZONES STANDARD R-4.5 PROPOSED Minimum Lot Size -Detached unit 7,500 sq.ft. 5,500-6,879 sq.ft. -Duplexes 10,000 sq.ft. N/A -Attached unit 1 N/A Average Minimum Lot Width Detached unit lots 50 ft. Varies 40+ Duplex lots 90 ft. N/A Attached unit lots N/A Maximum Lot Coverage Minimum Setbacks -Front yard 20 ft. 12 ft. -Side facing street on corner&through lots 15 ft. N/A -Side yard 5 ft. 5 ft. -Rear yard 15 ft. 15 ft. -Side or rear yard abutting more restrictive zoning district - N/A -Distance between property line and front of garage 20 ft. 20 ft. Maximum Height 30 ft. 30 ft. Minimum Landscape Requirement 26%For PD Overlay [1] Single-family attached residential units permitted at one dwelling per lot with no more than five attached units in one grouping. [2] Lot coverage includes all buildings and impervious surfaces. FINDING: Since the proposed development is a Planned Development, these standards can be altered to fit a specific design. The ap licant has proposed dimensional standards that meet or exceed the development standards of the underlying zone with the exception of lot size,lot width and front yard setbacks. ACCESS AND EGRESS:CHAPTER 18.705 minimum access requirements Tor rest ential use: Section18.705.030H. • Access Mana ement Section 18.705.030.H) Secfion 1a7 � saes a an access report shall be submitted with all new development proposals which verifies design of driveways and streets are safe by meetingT adequate stackin needs, sight distance and deceleration standards as set by ODO , Washington Counvy,the City and AASHTO. I The applicant (Algha Engineering) analyzed the sight distance for the proposed private street entrance onto 108 Avenue. They found that currently there is at least 250 feet of sight distance north and south of the proposed access location. This sufficiently meets Washington County's sight distance requirements. Alpha suggests that trees and low shrubs be continually pruned to maintain that adequate sight distance. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 17 OF 32 Section 18.705.030.H.2 states that driveways shall not be permitted to be placed in the Influence area of collector or arterial street intersections. Influence area of intersections Is that area where queues of traffic commonly form on approach to an intersection. The minimum driveway setback from a collector or arterial street intersection shall be150 feet measured from the right-of-way line of the intersecting street to the throat of the proposed driveway. The setback may be greater depending upon the influence area,as determined from City Engineer review of a traffic im act report submitted by the applicant's traffic engineer. In a case where a project has less than 150 feet of street frontage, the applicant must explore any option for shared access with the adjacent parcel. If shared access is not possible or practical,the driveway shall be placed as far from the intersection as possible. The new private street entrance is not within 150 feet of any collector or arterial street intersection. Section 18.705.030.H.3 and 4 states that the minimum spacing of driveways and streets along a collector shall be 200 feet. The minimum spacing of driveways and streets along an arterial shall be 600 feet. The minimum spacing of local streets along a local street shall be 125 feet. The new private street entrance is approximately 134 feet north of the Kent Street intersection, thereby satisfying this criterion. Vehicular access and egress for single-family, duplex or attached single-family dwelling units on individual lots and multi family residential uses shall not be less than as provided in Table 18.705.1 and Table 18.705.2; TABLE 18.705.1 VEHICULAR L6RESS EIMESIENTAUSE OR FEWER UNITS) Dweiling Units Minimum Number;; of ;Minimum Access Width Minimum Pavement Width Driveway s Re ui[ed ..or15, , Tee 10 feet The applicant has indicated in the narrative that each lot within the subdivision will have access to the private street and that each access will meet the 15-foot access requirement. FINDING: All proposed lots will meet the required 15 feet of access frontage required for single- family dwellings. To ensure that the minimum width pavement requirement is met at the time of development of each parcel,the following condition shall apply: CONDITION:At the time of application for building permits for individual homes, the applicant shall demonstrate that each site will be accessed by a minimum 104bot-wide paved access. Vehicular access to multi family structures shall be brought to within 50 feet of the ground floor entrance or the ground floor landing of a stairway, ramp, or elevator leading to the dwelling units. This is a proposal for a single-family development. This standard does not apply. Private residential access drives shall be provided and maintained in accordance with the provisions of the Uniform Fire Code. i The individual homeowners will maintain the access drives once the property is developed and sold. The Tualatin Valley Fire and Rescue district has reviewed the proposal and the comments have been i incorporated where necessary. This criterion is satisfied. Access drives in excess of 150 feet in length shall be provided with approved provisions for the turning around of fire apparatus by one of the following: A circular paved surface having a minimum turn radius measured from center point to outside edge of 35 feet; • A hammerhead-configured, paved surface with each leg of the hammerhead having a minimum depth of 40-feet and a minimum width of 20 feet;. • The maximum cross slope of a required turnaround is 5%. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 18 OF 32 There are no access drives proposed that would exceed 150 feet in length. This criterion has been met. Vehicle turnouts, (providing a minimum total driveway width of 24 feet for a distance of at least 30 feet), may be required so as to reduce the need for excessive vehicular backing motions in situations where two vehicles traveling in opposite directions meet on driveways in excess of 200 feet in length. There are no proposed driveways in this development that exceed 200 feet in length, The deepest lot in the proposed development is 130 feet,therefore,this criterion does not apply. Where permitted, minimum width for driveway approaches to arterials or collector streets shall be no less than 20 feet so as to avoid traffic turning from the street having to wait for traffic exiting the site. The site is not adjacent to a collector or arterial. This standard does not apply. FINDING: The proposed development can comply with all applicable access, egress, and circulation requirements of Chapter 18.705. DENSITY COMPUTATIONS:CHAPTER 18.715 Density Calculation: 18.715.020 Definition of net development area. et eve opment area, in acres, shall be determined by subtracting the following land area(s) from the gross acres, which is all of the land included in the legal description of the property to be developed: e All sensitive land areas: a. Land within the 100-year floodplain; b. Land or slopes exceeding 25%; c.Drainage ways; and d.Wetlands. All land dedicated to the public for park purposes; e All land dedicated for public rights-of-way. When actual information is not available,the following formulas may be used: Single-family development: allocate 20% of gross acreage; Multi-family development- allocate 15%of gross acreage. All land proposed for private streets; and e A lot c:at :c S the size requh-cd -by the applicable base zoning district, if an existing dwelling is to remain on the site. Calculatin maximum number ofresidential units. To calculate the maximum num er o rest ental units per net acre, divide the number of square feet in the net acres by the minimum number of square feet required for each lot in the applicable zoning district. The net development area is determined by subtracting from the gross area, the land needed for public streets. The calculations are as follows: I Gross lot area 101,930 square feet Street dedication 15,590 square feet Stec Slo es 1 260 scivare feet iEA5, squa-re-feet i To calculate the maximum allowed density, net developable area is divided by the minimum allowed square footage within the zone,as follows: R-4.5 zone 85;DZ-077,500=11 dwelling units FINDING: The p%posed ten dwelling units do not exceed maximum density of the net developable area.this standard is met. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 19 OF 32 Calculatina minimum number of residential units. AS—regwre y ection ,the minimum number of residential units per net acre shall be calculated by multiplying the maximum number of units determined in Subsection B above by 80%(0.8). The minimum required density is determined by the following calculation: 11 X 0.80=9 FINDING: The standard for minimum density is met. ENVIRONMENTAL PERFORMANCE STANDARDS: CHAPTER 18.725 These standards require that federal and state environmental laws, rules and regulations be applied to development within the City of Tigard. Section 18.725.030 Performance Standards regulates: Noise,visible emissions, vibration and odors. Noise.For the purposes of noise regulation,the provisions of Sections 7.41.130 through 7.40.210 o th-e Tigard Municipal Code shall apply. Visible Emissions. Within the commercial zoning districts and the industrial park IP) zoning strict, t ere shall be no use, operation or activity which results in a stack or o her point- source emission, other than an emission from space heating, or the emission of pure uncombined water(steam)which is visible from a property line. Department of Environmental Quality(DEQ) rules for visible emissions(340-21-015 and 340-28-070)apply. Vibration. No vibration other than that caused by highway vehicles, trains and aircraft is pee d� ettett in any given zoning district which is discernible without instruments at the property line of the use concerned. Odors. The emissions of odorous gases or other matter in such quantities as to be readily e-tecable at any point beyond eyo app y.property line of the use creating the odors is prohibited.DEQ rules for odors(34 Glare and heat. No direct or sky reflected glare whether from floodlights or from high temperature processes such as combustion or welding,which is visible at the lot line shall be ..__ and �) there shall be no emission or transmission of heat or heated air which is discernible at the lot line of the source; and 2) these reguiaiicn.s s;all :a. apply to signs or floodlights in parking areas or construction equipment at the time of construct5on or excavation work otherwise permitted by this title. Insects and rodents. All materials including wastes shall be stored and all grounds shall be ma�ntarne rn a manner which will not attract or aid the propagation of insects or rodents or create a health hazard. This is a detached single-familyproject,which is permitted within planned developments in the R-4.5 n zoe. There is nothing to Indicate that these standards will not be met. However, ongoing maintenance to meet these standards shall be maintained and any violation of these standards will be addressed by the City of Tigards'Code Enforcement Officer. r i FINDING: The Environmental Performance standards are met. i LANDSCAPING AND SCREENING: CHAPTER 18.745 Establishes stan ars or an scaping, buffering and screening to enhance the aesthetic environmental quality of the City. The R-4.5 zoning district does not require any landscaping,however,planned man that are toh t a minimum of 20%of the site be iandscaped. As discussed r.e_.___ landscaped constitute 27%of the site, and additional landscaping wlfl be planted with the development of each lot. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 20 OF 32 Section 18.745.040. states that all development projects fronting on a public street, private street,or a private driveway more than 100 feet in length after the adoption of this title shall be required to plant street trees in accordance with the standards in Section 18.745.040C. The applicant has provided a landscape and street tree plan for the development to include the planting of 10 red oaks along the front of the lots facing the private street. The applicant has also proposed to retain the e>�sting trees at the front portion of the site to satisfy the street tree requirement along SW 108 Ave. However, when the applicant proposes to use existing trees, they must apply for a type 1 adjustment and demonstrate that the tree will not be lost as a result of any cutting or filling around the tree during construction. They must also demonstrate that the ground around the tree is only altered for drainagepurposes. The applicant did not request the adjustment, but it is apparent from the plans and the discussion in the street improvement adjustment portion of the narrative,that the applicant can meet these standards. The street trees are acceptable species. This criterion is satisfied Bufferina and Screenin -Section 18.745.050 u enng an screen ng is required to reduce the impacts on adjacent uses which are of a i different type n accordance with the matrices in this chapter(Tables 18.745.1 and 18.745.2). The subject site is surrounded by single-family developments; therefore, there is no requirement for buffering and screening for this project. FINDING: As conditioned,the proposed development will comply with all applicable Landscaping and Screening requirements of Chapter 18.745. MIXED SOLID WASTE AND RECYCLABLE STORAGE: CHAPTER 18.755 ATtHough listedas a review criterion fort Is application, this chapter is only applicable to multi-unit residential buildings containing five or more units and non-residential construction. Therefore, this chapter is inapplicable. The applicant has stated that they intend to serve the site as any other single-family development would be served. OFF-STREET PARKING AND LOADING REQUIREMENTS: CHAPTER 18.765 isapter is applicable for development projects when there is new construction, expansion of existing use, or change of use in accordance with Section 18.765.070 Minimum and Maximum Off-Street Parking Requirements. The proposed project will create 10 lots for single-family dwellings. Submittals of detailed plans for the construction of homes within',the develo :ent are not n-c- ss:ry at this time_ TahIP 18.765.2 requires that one(1)off-street parking space be provided per detached dwelling unit. There is no maximum limit on parking allowed for detached single-family dwellings. There is also no bicycle parking requirement for single-family dwellings. Staff notes that there is a 20-foot required setback from the face of garages to property lines in all residential zones. To ensure that homes constructed in this development comply with these standards,the following condition shall apply: CONDITION:At the time of submittal for building permits for individual homes within the development, the developer shall submit materials demonstrating that one (1) off-street parking space, which meets minimum dimensional requirements and setback requirements as specified in i Title 18,will be provided on-site for each new home. TREE REMOVAL: CHAPTER 18.790 tree plan fort the planting,removal and protection of trees prepared by a certified arborist shall be provided with a site development review application. The tree plan shall include identification of all existing trees, identification of a program to save existing trees or mitigate tree removal over 12 inches in caliper,which trees are to be removed, protection program defining standards and methods that will be used by the applicant to protect trees during and after construction. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 21 OF 32 The applicant has provided an arborist report dated February 3, 2003 from Walter Knapp. In the report,the arborist states that there are a total of 85 trees more than 12 inches in diameter at 4 feet above grade. The report states that 9 trees are considered hazardous, and that 16 additional trees will be removed to accommodate construction. Removal of the 16 trees to accommodate construction represents 21%of the trees over twelve inches that are on site. Since the applicant is retaining more than 75% of the trees over twelve inches on site, there is no requirement for mitigation. However, the City's arborist has raised several concerns in his comments as to whether or not the development would be able to save the large trees on the north property line. He contends that the location of the street in proximity to the trees would jeopardize the survivability of the trees. He has recommended that the street be shifted,and that lots 9 and 10 be included in the open space to protect the large trees at the west end of the property. The primary concern is wind damage and the possibility of affecting the trees to the extent tha{ there root structure is compromised, thus rendering the tree a hazard. Staff recommends that further study be afforded to the trees at the northern property boundaries. Once the construction documents are complete, a more detailed analysis could be performed by the City Arborist to assure that those trees that would be severely affected by the construction be removed. At that time staff would recalculate the mitigation requirements. FINDING The applicant has provided a tree plan and arborist report to address the protection and removal of trees on site. To ensure that the trees are preserved according to the plan,the following conditions shall apply: CONDITIONS: The applicant shall comply with the recommendations of the arborist report, and shall provide the City Arborist with a construction sequence including installation and removal of tree protection devices, clearing,grading, and paving. Prior to site work, the applicant shall submit a complete set of construction documents with the tree locations for the City Arborists review. Should additional trees need to be removed, mitigation shall be recalculated. The applicant shall notify the City Arborist when tree protection measures are in place so that he may verify that the measures will function properly prior to construction. ® Visual Clearance Areas: Section 18.795 Clear vision area shall be maintained on the corners of all property adiacent to intersection of two streets,a street and a railroad, or a driveway providing access to a public or private street. A clear vision area shalt contain no vehicle hedge, planting, fence, wall structure, or temporary or permanent obstruction exceeding three �3)feet in height, measured from the top of the curb, or where no curb exists,from the street center grade, except the trees exceeding this height may be located in this area, provided all branches below eight feet are removed. For arterial streets the visual clearance shall not be less than 35 feet on each side of the intersection. No specific plans for the construction of structures are required through the subdivision process. Compliance with vision clearance requirements shall be confirmed through the building permit process for all homes to be constructed within the developm9pt. The applicant has not illustrated the clear vision areas on the plans for the intersection of SW 108 Avenue and the private street,but has i indicated in the narrative that there will be no obstructions placed within these areas. This standard is met. G. IMPACT STUDY: SECTION 18.390.040.B.e Requires that t e applicant shall include an impact study. The study shall address, at a minimum, the transportation system, including bikeways, the drainage system, the parks system, the water system, the sewer system, and the noise impacts of the development. For each public facility system and type of impact of the development on the public at large,public facilities systems, and affected private property users. In situations where the Community Development Code requires the dedication of real property interests, the applicant shall either specifically concur with the dedication of real property interest, or provide evidence which Q supports the conclusion that the real property dedication requirement is not roughly proportional to the projected impacts of the development. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 22 OF 32 The applicant has submitted an impact study addressing the required elements above. ROUGH PROPORTIONALITY ANALYSIS Based on a transportation impact study prepared for the A-Boy Expansion/Dolan/Resolution 95-61,TIF's are expected to recapture 32 percent of the traffic impact of new development. Presently,the TIF for each residential trip that is generated is$226. According to the Washington County TIF ordinance,32 percent of a projects impacts are met by its TIF assessment in Tigard. This leaves 68 percent unmitigated. The actual cost of system improvements per trip generated by new development on the Tigard street system can be determined by the following equation(Larson,Mackenzie Engineering,Dolan Findings,June 1995): $226 divided by.32 equals$706. ($226 is the residential use trip rate per trip TIF assessment according to the Washington County TIF ordinance). According to the ITE manual figures and the TIF ordinance, a single-family detached residential unit generates 10 average weekday trips per dwelling unit, per day. As there are ten new dwelling units proposed, 100 trips are generated per day for this site. Less Miti ated Costs eapp icant is required to make half-street improvements to the right-of-way along 150 feet of the projects frontage on SW 108th Avenue. At an approximate cost of$200(estimated cost)per linear foot, this is valued at approximately$30,000. The appligant is also required to contribute$391 towards the future bike strips that will be put in place on SW 108 Avenue_ Estimate of unmiti ated im acts Full mpact Is equa to100 daily trips x$706=$70,600 Less TIF Assessment 100 daily trips x$226=$22,600 Less Miti aq ted costs= $30,391 aTs thunmitigateImpact o X7,609 FINDING: Using the above cost factors, it can be determined that the unmitigated impacts of the development exceed the costs of the conditions imposed and,therefore,the conditions are roughly proportionate to the impacts sustained and thereby justified. STREET AND UTILITY IMROVEMENTS STANDARDS: CHAPTER 18.810 a er provi es Pcons ruction standards or the implementation of public and private `€cs ^- d unilities such as streets, sewers, and drainage. The applicable standards are addressed below: Streets: Improvements: Section 18.810.030.A.1 states that streets within a development and streets adjacent shall be improved in accordance with the TDC standards. Section 18.810.030.A.2 states that any new street or additional street widthlanned as a portion of an existing street shall be dedicated and improved in accordance with the TDC. Minimum Rights-of-Way and Street Widths: Section 18.810.030(E) requires a neighborhood route street to have a 54 foot right of-way width and a 32-hoot paved section. Other improvements required may include on-street parking, sidewalks and bikeways, underground i utilities,streat lighting,storm drainage,and street trees. This site lies adjacent.to SW 108th Avenue which is classified as a neighborhood route with bike i lanes on the Citi of Tigard Transportation Plan Map. At present, there is approximately 20 feet of ROW west of the centerline, according to the most recent tax assessor's map. The applicant proposes to dedicate an additional nine feet of ROW to provide the required 29 feet from centerline. SW 108th Avenue is currently paved, but not fully improved to meet current standards. In order to mitigate the impact from this development, the applicant proposes to construct a half-street improvement adjacent to the site. The required curb-fPo-curb paved width for this type of street is 36 feet. At presen , there is 20 feet of paveme,A from centerline to the curb line along the east side of the roadway. This is explained because 108 Avenue previously was classified as a minor collector which required a total paved section of 40 feet. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 23 OF 32 The applicant is concerned with some existing trees along the west edge of the roadway that they would like to preserve. They propose to extend the pavement width to 16 feet west of the centerline for most of the site frontage and would transition the curb line at the north end of the site to match the existing curb. The required 36-foot wide paved width would be accomplished, but the crown of the road would be offset from the pavement centerline by approximately two feet because of the 20-foot section east of the ROW centerline. This condition is not uncommon and Staff believes a safe transition can be made. There is a problem with the applicant's plan as it pertains to the south end of the site. There, the proposed curb line would be terminated at 16 feet from centerline. The problem is that the existing paved width on the east side is only 17 feet, south of Kent Street. City asbuilts show that when the .Kent Street intersection was constructed,the curb line on the south side of Kent was built at 17 feet from centerline. If the applicant's project ends with the curb line at 16 feet, the remaining pavement section would only be 33 feet which would not meet the current standard. Staff recommends the applicant be required to transition the curb line at the south end of the site so that there is 18 feet from the centerline to the curb. Ad'ustment for Curb-tight Sidewalk. ecause o t e trees a latent tote southeast corner of the site in Tract A,the applicant would like to move the sidewalk to curb-ti ht to minimize the tree impacts. Adjustments to street standards are covered under TDC 18.370.020.0.11, where the Director must find that the following criterion is satisfied: "Strict application of the standards will result in an unacceptably adverse impact on existing development, on the proposed development, or on natural features such as wetlands, steep slopes or existing mature trees. In approving an adjustment to the standards, the Director shall determine that the potential adverse impacts exceed the public benefits of strict application of the standards." The trees in Tract A adjacent to the roadway are between 15 and 19 inches in diameter, and are considered mature trees. By moving the sidewalk to the curb line, impacts in the root zone of the trees can be minimized. Staff finds that the adjustment would not adversely affect the public benefits, as citizens often comment that they do not like to see mature trees being removed with development. The trees adjacent to the public sidewalk will also provide a nice streetscape for pedestrians. Staff recommends approval of this adjustment. Future Street Plan and Extension of Streets: Section 18.810.030(F) states that a future street clan shall be flied wolc: shcra_ the L attern of existing and proposed future streets from the oundaries of the proposed land division. This section also siaies that•r:here it Is necessam,to give access or permit a satisfactory future division of adjoining land,streets shall be extended to the boundary lines of the tract to be developed and a barricade shall be constructed at the end of the street. These street stubs to adjoining properties are not considered to be cul-de-sacs since they are intended to continue as through streets at such time as the adjoining property is developed. A barricade shall be constructed at the end of the street by theproperty owners which shall not be removed until authorized by the City Engineer, the cost of which shall be included in the street construction cost. Temporary hammerhead turnouts or temporary cul-de- sac bulbs shall be constructed for stub streets in excess of 150 feet in length. i The applicant's circulation plan shows that it is not feasible to extend a public or private roadway further i to the west because of the creek. Also,the slopes approaching the creek exceed 25%and would not r support the grade requirements of a public or private street. In addition, the land to the north and south of this Site are developed and there is no street connection potential in those directions. The circulatio plan shows that properties west of the creek could reasonably develop with street connections to 113u' Avenue. Street Alignment and Connections: Section 18.810.030(G) states that staggering of streets making "T"intersections at collectors and arterials shalt not be designed so that dogs of less than 3 O feet on such streets are created, as measured from the centerline of such street. Spacing between local street intersections shall have a minimum. separation of 125 feet. All local streets which abut a development site shall be extended within the site to provide through circulation when not precluded by environmental or topographical constraints, existing development patterns or strict adherence to other standards in this code. A street connec`$on or extension is precluded when it is not possible to redesign, or reconfigure the NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 24 OF 32 street pattern to provide required extensions. In the case of environmental or topographical constraints, the more presence of a constraint Is not sufficient to show that a street connection Is not possible. The applicant must show why the constraint precludes some reasonable street connection. As was stated above,the steep slopes and creek to the west preclude extension of a public or private roadway further to the west. Cul-de-sacs: 18.810.030.K states that a cul-de-sac shall be no more than 200 feet long,shall not provide access to greater than 20 dwelling units,and shall only be used when environmental or topographical constraints, existing development pattern, or strict adherence to other standards in this code preclude street extension and through circulation: All cul-de-sacs shall terminate with a turnaround. Use of turnaround configurations other than circular,shall be approved by the City Engineer;and The length of the cul-de-sac shall be measured along the centerline of the roadway from the near side of the intersecting street to the farthest point of the cul-de-sac- If a cul-de-sac Is more than 300 feet long,a li hted direct pathway to an adjacent street may be required to be provided and dedlcatedgto the City. The a plicant proposes a private street that would have a length of approximately 500 feet. Again, the adpustment criteria found in TDC 18.370.020.C.I I applies: "Strict application of the standards will result in an unacceptably adverse impact on existing development, on the proposed development, or on natural features such as wetlands, steep slopes or existing mature trees. In approving an adjustment to the standards, the Director shall determine that the potential adverse impacts exceed the public benefits of strict application of the standards." The site is over 650 feet deep, which poses a challenge immediately when it comes to serving developable lots with street frontage. In addition, as was mentioned before, the steep slopes and creek to the west preclude any connection to the west. Existing development to the north and south also preclude street connections. Therefore, in order to serve the developable portion of this site, a street of over 200 feet is necessary. The impacts to the steep slopes and creek channel would exceed any perceived public benefit of a through street, especially when this street will only serve a total of 10 homes. Staff supports this adjustment. Grades and Curves: Section 18.810.030.M states that grades shall not exceed ten percent on arterials, 12% on collector streets, or 12% on any other street (except that local or residential access streets may have segments with grades up to 15% for distances of no greater than 250 feet),and: The new private street will have a gradient of less than three percent,thereby meeting this criterion. Private Streets: Section 18.810.030.S states that design standards for private streets shall be established by the City Engineer. The City shall require legal assurances for the continued maintenance of private streets, such as a recorded maintenance agreement. Private streets serving more than six dwelling units are permitted only within planned developments, mobile home parks,and multi-family residential developments. i i The applicant proposes to serve a total of 10 homes with the private street. This would be permitted with a Planned Development approval. Staff supports the applicant's plan because the site is constrained to allow the width requirements of a public street. The applicant shall place a statement on the face of the final plat indicating the private street(s)will be owned and maintained by the properties that will be served by it/them. In addition,the applicant shall record Conditions, Covenants and Restrictions(CC&R's)alon with the final plat that will clarify how the private property owners are to maintain the private street s)). These CC&R's shall be reviewed and approved by the City prior to approval of the final plat. fIe City's public improvement design standards requireppnvate streets to have a pavement section equal to a public local street. The applicant wiN need to provide this type of pavement section. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 25 OF 32 Paved Width e trove width of the private street is proposed at 22 feet versus 24 feet in order to preserve Tract C on the north side and existing trees, as well as to provide adequate depth for the new lots. Figure 18.810.6 provides the "skinny street" standard for roadways that would otherwise require a 24-foot wide paved section. There are two criteria: 1)the applicant must provide a minimum of one(1)off- street pparking space for every 20 feet of restricted street frontage; and 2) no parking is permitted within 30 feet of an intersection. The second criterion is met because the first parking "bump out" is well over 30 feet away from the 108th Avenue intersection. The first criterion does not appear to be met. The applicant's "bump outs"provide a total length for parking of approximate) 210 feet. With approximately 20 lineal feet needed per car space, these bump outs would provide approximately 10 additional off-street parking spaces, as mentioned in the applicant's narrative. The restricted portions of the private street (those segments not adjacent to a bump out)total approximately 240 lineal feet. Onearking space per 20 feet would require a total of 12 additional off-street parking spaces. Therefore, the applicant will need to revise the street plan to lengthen the bump outs so that a total of 12 parking spaces are provided. Staff finds that the applicant should easily be able to meet this standard. Block Designs -Section 18.810.040.A states that the length, width and shape of blocks shall be designed with due regard to providing adequate building sites for the use contemplated, consideration of needs for convenient access,circulation,control and safety of street traffic and recognition of limitations and opportunities of topography. Block Sizes: Section 18.810.040.B.1 states that the perimeter of blocks formed by streets shall not exceed 1,800 feet measured along the right-of-way line except: Where street location is precluded by natural topography, wetlands or other bodies of water or,pre-existing development or; For blocks adjacent to arterial streets, limited access highways, major collectors or railroads. For non-residential blocks in which internal public circulation provides equivalent access. Because of existing development,there are no further opportunities for connections. This standard is met. Section 18.810.040.B.2 also states that bicycle and pedestrian connections on public easements or right-of-ways shall be provided when full street connection is not possible. Spacing between connections shall be no more than 330 feet except where precluded by environmental or topogra hical constraints, existing development patterns, or strict adherence to other standards in the code. The applicant has proposed to serve the site with a sidewalk on one side of the private street,and to stub a pedestrian path to the western property line. There are no further opportunities for making a bicycle/pedestrian connection within this development. This standard is satisfied. Lots-Size and Shape: Section 18.810.060(A)prohibits lot depth from being more than 2.5 times the average lot width, unless the parcel is ess than 1.5 times the minimum lot size of the applicable zoning district. i None of the proposed lots exceed 150 feet in length, which is 2.5 times the average lot width. This I standard is satisfied. Lot Frontage: Section 18.810.060(6)requires that lots have at least 25 feet of frontage on public or private streets, other than an alley. In the case of a land partition, 18.420.050.A.4.c applies, which requires a parcel to either have a minimum 15-foot frontage or a minimum 15-foot wide recorded access easement. In cases where the lot is for an attached single-family dwelling unit, the frontage shall be at least 15 feet. NOTICE OF FINAL ORDER No.2D03-01FC BY THE PLANNING COMMISSION PAGE 26 OF 32 All lots with the exception of lot 9 have 25 feet of frontage onto the private street. This is not a standard that can be deviated from through the planned development process. This criterion is not satisfied. FINDING: Lot 9 does not have 25 feet of frontage on a public or private street. CONDITION:Prior to site work, the applicant shall revise the plat to accommodate a minimum of 25 feet of frontage for all lots within the development. Sidewalks: Section 18.810.070.A requires that sidewalks be constructed to meet City design standards and be located on both sides of arterial,collector and local residential streets. The applicant will construct a sidewalk along 108th Avenue and will construct a sidewalk along one side of the new private street. This standard will be met. Sanitary Sewers: Sewers Required: Section 18.810.090.A requires that sanitary sewer be installed to serve each new development and to connect developments to existing mains in accordance with the provisions set forth in Design and Construction Standards for Sanitary and Surface Water Management (as adopted by Clean Water Services in 1996 and including any future revisions or amendments)and the adopted policies of the comprehensive plan. Over-sizing: Section 18.810.090.0 states that proposed sewer systems shall include consideration of additional development within the area as projected by the Comprehensive Plan. There is an existing 8-inch public line in 108th Avenue that has ample capacity to serve this site. The applicant will extend a new 8-inch public line within the private street to serve the new lots. Storm Drainage: General Provisions: Section 18.810.100.A states requires developers to make adequate provisions for storm water and flood water runoff. Accommodation of Upstream Drainage: Section 18.810.100.0 states that a culvert or other drainage facility shall be large enough to accommodate potential runoff from its entire upstream drainage area,whether inside or outside the development. The City Engineer shall approve the necessary size of the facility, based on the provisions of Design and Construction Standards for Sanitary and Surface Water management(as adopted by Clean Water Services in 2000 and including any future revisions or amendments). The applicant's narrative indicates there is an intermittent stream that exists just to the south of the site and partially crosses the site through Tract A. Adjustments to the storm drainage system in 108 Avenue many years ago stopped the discharge of street storm water into this channel. At present, there does not appear to be any regular flow of storm water. Based on the location and minimal flow of this channel, it does not pose a threat to this development. L Effect on Downstream Drainage: Section 18.810.100.D states that where it is anticipated by the City Engineer that the additional runoff resulting from the development will overload an existing drainage facility, the Director and Engineer shall withhold approval of the development until provisions have been made for improvement of the potential condition or until provisions have been made for storage of additional runoff caused by the development in accordance with the Design and Construction Standards for Sanitary and Surface Water Management (as adopted by Clean Water Services in 2000 and including any future revisions J or amendments). This site lies within '/.-mile of the Tualatin River and there are no restrictions in the open channel system between this site and the river. Therefore,onsite detention is not advisable. The flows from this site will be treated then released into the intermittent stream channel that flows in a southwesterly direction. Since the developpment is served entire)y by a private street, the storm drainage system in the private street must also be privately maintained. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 27 OF 32 Bikeways and Pedestrian Pathways: Bikeway Extension: Section 18.810.110.A states that developments adjoining proposed bikeways identified on the City's adopted pedestrian/bikeway plan shall include provisions for the future extension of such bikeways through the dedication of easements or right-of-way. As was stated previously, 108th Avenue is a neighborhood route with bike lanes. There are no bike lanes striped in this area at present. Cost of Construction: Section 18.810.110.6 states that development permits issued for planned unit developments conditional use permits, subdivisions, and other developments which will principally benefit from such bikeways shall be conditioned to include the cost or construction of bikeway improvements. As a part of this application,the applicant should contribute toward the future bike lane stripe on the west side of the roadway. The amount of the striping would be as follows: 150 feet of 8-inch white stripe, at$2.50/if $375.00 4 Mono-directional reflective markers @$4.00/ea 16.00 Minimum Width: Section 18.810.1'10.0 states that the minimum width for bikeways within the roadway is five feet per bicycle travel lane. Minimum width for two-way bikeways separated from the road is eight feet. The future bike lane will be six feet in width. Utilities: Section 18.810.120 states that all utility lines, but not limited to those required for electric, communication, lighting and cable television services and related facilities shall be placed underground, except for surface mounted transformers, surface mounted connection boxes and meter cabinets which may,be placed above ground, temporary utility service facilities during construction,high capacity electric lines operating at 50,000 volts or above, and: The developer shall make all necessary arrangements with the serving utility to provide the underground services; The City reserves the right to approve location of all surface mounted facilities; All underground utilities, including sanitary sewers and storm drains installed yin streets by the developer,shall be constructed prior to the surfacing of the streets;and Stubs for service connections shall be long enough to avoid disturbing the street improvements when service connections are made. Exception to Under-Grounding Requirement: Section 18.810.120.0 states that a developer shall pay a fee in-lieu of under-grounding costs whe:i the development is proposed to take 9 place on a street where existing utilities which are not underground will serve the development and the approval authority determines that the cost and technical difficulty of under-grounding the utilities outweighs the benefit of under-grounding-in conjunction with the development. The determination shall be on a case-by-case basis. The most common, but i not the only, such situation is a short frontage development for which under-grounding would i result in the placement of additional poles, rather than the removal of above-ground utilities i facilities. An applicant for a development which is served by utilities which are not underground and which are located across a public right-of-way from the applicant's property shall pay a fee in-lieu of under-grounding. There are existing overhead utility lines along the frontage of SW 108th Avenue. If the fee in-lieu is p,oposed, it is equal to$27.50 per lineal foot of street frontage that contains the overhead lines. The frontage along this site is 150 lineal feet;therefore the fee would be$4,125.00. ADDITIONAL CITY AND/OR AGENCY CONCERNS WITH STREET AND UTILITY IMPROVEMENT Public Water System: NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 28 OF 32 This site can be served from the City's main water line in 108u, Avenue. Since the City does not permit public water lines in a private street,the applicant will need to bank the water meters as shown on the plan at the entrance to the subdivision. Storm Water Quality: une Citya—moi s agreed enforce Surface Water Management(SWM) regulations established by Clean Water Services (CWS) Design and Construction Standards (adopted by Resolution and Order No. 00-7)which require the construction of on-site water quality facilities. The facilities shall be designed to remove 65 percent of the phosphorus contained in 100 percent of the storm water runoff generated from newly created impervious surfaces. In addition, a maintenance plan shall be submitted indicating the frequency and method to be used in keeping the facility maintained through the year. Prior to construction,the applicant shall submit plans and calculations for a water quality facility that will meet the intent of the CWS Design Standards. In addition, the applicant shall submit a maintenance plan for the facility that must be reviewed and approved by the City prior to construction. The applicant will meet CWS water qualit specifications by providing a 100-foot long biofiltration swale in Tract A. The Swale, along with the onsite storm drainage system, must be privately maintained. The applicant's CCR's must provide clear direction to the future home owners as to the maintenance responsibilities for Tract A. Grading and Erosion Control: esign an onstruction Standards also regulate erosion control to reduce the amount of sediment and other pollutants reaching the public storm and surface water system resulting from development,construction,grading,excavatin ,clearing,and any other activity which accelerates erosion. Per CWS regulations, the applicant icant is required to submit an erosion control plan for City review and approval prior to issuance of City permits. The Federal Clean Water Act requires that a National Pollutant Discharge Elimination System (NPDES) erosion control permit be issued for any development that will disturb five or more acres of land. Since this site is over five acres, the developer will be required to obtain an NPDES permit from the City prior to construction. This permit will be issued along with the site and/or building permit. A final grading plan shall be submitted showing the existing and proposed contours. The plan shall detail the provisions for surface drainage of all lots, and show that they will be graded to insure that surface drainage is directed to the street or a public storm drainage system approved by the Engineering Department. For situations where the back portions of lots drain away from a street and toward adjacent lots, approriate private storm drainage lines shall be provided to sufficiently contain and convey runoff p from each lot.The applicant will be required to obtain a NPDES permit, as this site is over two acres in size. Address Assignments- e Gity of Tigardis responsible for assigning addresses for parcels within the City of Tigard and within the Urban Service Boundary(USB). An addressing fee in the amount of$ 30.00 per address shall be assessed. This fee shall be paid to the City prior to approval of the final plat. The City of Tigard is responsible for assigning addresses for parcels within the City of Tigard and i within the Urban Service Boundary (USB). An addressing fee in the amount of$30.00 per address i shall be assessed. This fee shall be paid to the City prior to approval of the final plat. For this project,the addressing fee will be$360(12 lots and/or tracts X$30/address=$360). Survev Re uirements: Tfi-ea iCant s nalpat shall contain State Plane Coordinates[NAD 83(91)]on two monuments with a tie to the City's global positioning system(GPS)geodetic control network(& 22). These monuments shall be on the same line and shall be of the same precision as required for the subdivision plat boundary. Along with the coordinates, the plat shall contain the scale factor to convert ground measurements to grid measurements and the angle from north to grid north. These coordinates can be established bw GPS Ue networked to the City s GPS survey. By random traverse using conventional surveying methods. NOTICE OF FINAL ORDER 140.2003-01 PC BY THE PLANNING COMMISSION PAGE 29 OF 32 In addition, the applicant's as-built drawings shall be tied to the GPS network. The applicant's engineer shall provide the City with an electronic file with points for each structure(manholes, catch basins, water valves, hydrants and other water system features) in the development, and their respective X and Y State Plane Coordinates, referenced to NAD 83(91). SECTION Vil. OTHER STAFF COMMENTS The Tigard Building Division has reviewed this proposal but did not provide any comments at this time. The City of Tigard Operations Utility Manager has reviewed the proposal but did not provide any comments at this time. The City of Tigard Arborist has reviewed the proposal,and has provided the following comments: All trees on the neighboring properties must receive the same protection guidelines as the trees on the applicant's site. If the tree protection guidelines outlined in the conditions of approval are not followed, moved after being approved in the field, knocked down during construction or are removed prior to the end of construction the project will be: Immediately shut down until the fencing is reinstalled according to the conditions of approval. • Each impacted tree shall be bonded for seven years in the amount of$5,000.00 per tree. • Corrective action will taken by the applicant to address the damage done to the Critical Root Zones of each tree. Corrective action may include, but not limited to, loosening compacted soil, replacing graded soil or removing filled soil. A fine of$250.00 per day shall be assessed to the applicant for each day that the fencing is down. I am very concerned about the health and stability of the trees that will remain onsite. One of my concerns lies in the fact that their roots will receive extensive damage from the construction of the private drive and the homes. These trees are growing,for the most part, in a grove. As a result they have developed root systems that are intertwined and shared. The loss of neighboring and adjacent trees will have adverse impacts on the trees that are retained due to extensive root loss. Additionally, the trees serve to protect each other during periods of low, moderate and high winds. Removing trees from this grove could very well have adverse impacts on the remaining trees in that they could be blown over since they will be directly exposed to winds without the customary protection in addition to their root systems already having been extensively compromised. There is not enough protection provided for the "Retain" trees to avoid detrimental, and probably irreversible, damage to the root systems. One of the functions of tree roots is to provide anchorage for the tree in the soil. Not properly protecting the root systems can cause severe damage and death to the neighboring homes and families. If the trees do not fall they could die as a result of the extensive root damage and the future homeowners will be stuck paying for the very expensive job of removing the dead trees. If the developer is serious about keeping these trees, a more extensive root protection zone should be required. Putting the tree protection fencing at the drip lines for the majority of these trees will not be enough protection for the root systems. NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 30 OF 32 One suggestion would be to not develop lot 10 and reconfigure lots 8&9 to allow for adequate tree protection for the remaining large trees. This would alleviate a large problem regarding tree stability on the northeast portion of the development. In addition to the comment above, I would suggest eliminating the private drive on the northern portion of the development and tie into the existing road located just south of the development. I do not feel that thinning out the canopies of the remaining trees is a viable or wise option as a solution to the stability issues regarding the trees located on the northern boundary line. The trees will suffer immense root loss, which will have adverse impacts on the overall health of the trees, not just the stability. The trees will experience diminished abilities to take up water and nutrients as well as storage and conduction of water and nutrients. The Tigard Police Department has reviewed the proposal and indicated that they have no objections to the proposal. SECTION VIII. AGENCY COMMENTS The Tualatin Valley Fire and Rescue has reviewed the proposal and offered the following comments: DEAD END ROADS: Dead end fire apparatus access roads in excess of 150 feet in length shall be provided with an approved turnaround. Diagrams of approved turnarounds are available from the fire district. (UFC Sec.902.2.2.4) The proposed hammerhead turnaround is acceptable. NO PARKING SIGNS: Where fire apparatus roadways are not of sufficient width to accommodate parked vehicles and 20 feet of unobstructed driving surface, "Ivo Parking" signs shall be installed on one or both sides of the roadway and in turnarounds as needed. (UFC Sec. 902.2.4)Signs shall read "NO PARKING-FIRE LANE -TOW AWAY ZONE, ORS 98.810-98.812" and shall be installed with a clear space above grade level of 7 feet. Signs shall be 12 inches wide by 18 inches high and shall have black or red letters and border on a white background. (UFC Sec.901.4.5.1)—(See diagram on back) No Parking signs shall be provided in the hammerhead turnaround. SINGLE-FAMILY DWELLINGS AND DUPLEXES-FIRE HYDRANTS: Fire hydrants for single-family dwellings, duplexes and sub-divisions, shall be placed at each intersection. Intermediate fire hydrants are required if any portion of a structure exceeds 500 feet from a hydrant at an intersection as measured in an approved manner around the outside of the structure and along approved fire apparatus access roadways. Placement of additional fire hydrants shall be as approved by the Chief. (UFC Sec.903.4.2.2) SINGLE-FAMILY DWELLINGS - REQUIRED FIRE FLOW: The minimum available fire flow for 1 single-family dwellings and duplexes shall be 1,000 gallons per minute. If the structure(s) is(are) 3,600 square feet or larger, the required fire flow shall be determined according to UFC Appendix T able A-11111-A-1. (UFC Appendix III-A,Sec.5) NOTICE OF FINAL ORDER NO.2003-01 PC BY THE PLANNING COMMISSION PAGE 31 OF 32 ACCESS AND FIRE FIGHTING WATER SUPPLY DURING CONSTRUCTION' Approved fire apparatus access roadways and fire fighting water supplies shall be installed and operational prior to any other construction on the site or subdivision. (UFC Sec.8704) Clean Water Services, PGE, The Oregon Division of State Lands, Verizon, and Washington County were notified,but no additional comments were submitted. i SECTION IX. CONCLUSION The City of Tigard Planning Commission has APPROVED, subject to the CONDITIONS OF APPROVAL contained within this staff report, Subdivision (SUB2003-00001), Zone Change (ZON2003-00001), Planned Development(PDR2003-00001), and two Adjustments(VAR2003-00006 and VAR2003-00007)—BRETTON WOODS SUBDIVISION. IT IS FURTHER ORDERED THAT THE APPLICANT AND ALL PARTIES TO THESE PROCEEDINGS BE NOTIFIED OF THE ENTRY OF THIS ORDER. PASSED. THIS 19TM DAY OF MAY,2003 BY THE CITY OF TIGARD PLANNING COMMISSION. 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