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HomeMy WebLinkAboutD_Admin_Decision_Report_Exhibits_Tran_Short_Plat_190812_v4_FINALDEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Project Location Map D_Admin Decision_Tran Short Plat_190812_v4_FINAL A. ADMINISTRATIVE REPORT & DECISION Decision: APPROVED APPROVED SUBJECT TO CONDITIONS DENIED Report Date: August 27, 2019 Project File Number: PR19-000224 Project Name: Tran Short Plat Land Use File Number: LUA19-000113, SHPL-A Project Manager: Alex Morganroth, Associate Planner Owner/Applicant: Sang Tran, 16654 113th Ave SE, Renton WA, 98056 Contact: Thomas Woldendorp, Site Surveying, Inc, 21923 NE 11th St, Sammamish, WA 98074 Project Location: 16654 113th Ave SE Project Summary: The applicant is requesting Administrative Short Plat approval in order to subdivide an existing parcel into three lots. The subject property is located at 16654 113th Ave SE near northeast corner of 113th Ave SE and SE 168th St (APN 0088009330). The project site totals 21,600 square feet (0.5 acres) in area and is currently developed with a single-family home and associated accessory structure. The site has a Comprehensive Plan Land Use of Designation of Residential Medium Density and a zoning designation of Residential-8 (R-8) dwelling units per net acre (du/ac). The applicant is proposing to demolish the existing home and accessory structure and construct one detached single-family home on each of the new lots. The proposed lot sizes are 9,348 sq. ft., 5,524 sq. ft., and 5,539 sq. ft. Access to the lots is not indicated on the submitted plan but is likely to be via driveways off of SE 168th St and 113 Ave SE. COR maps did not indicated the presence of any critical areas on the site. The applicant did not indicate the removal any trees or vegetation on the site. Site Area: 0.47 acres DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 2 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL B. EXHIBITS: Exhibit 1: Administrative Decision Exhibit 2: Site Plan Exhibit 3: Landscape and Tree Retention Plan prepared by Site Surveying Exhibit 4: Drainage Report and Technical Information Report (TIR) prepared by Migizi Group, Inc (dated April 15, 2019) Exhibit 5: Geotechnical Report prepared by Migizi Group (dated January 24, 2019) Exhibit 6: Advisory Notes C. GENERAL INFORMATION: 1. Owner(s) of Record: Sang Tran, 16654 113th Ave SE, Renton WA, 98056 2. Zoning Classification: Residential-8 (R-8) 3. Comprehensive Plan Land Use Designation: Residential Medium Density (MD) 4. Existing Site Use: Single-family home 5. Critical Areas: Wellhead Protection Area Zone 2 6. Neighborhood Characteristics: a. North: Single-family Residential, Residential- 8 du/ac (R-8) b. East: Single-family Residential, Residential- 8 du/ac (R-8) c. South: Single-family Residential, Residential- 10 du/ac (R-10) d. West: Single-family Residential, Residential- 8 du/ac (R-8) 7. Site Area: 0.47 acres D. HISTORICAL/BACKGROUND: Action Land Use File No. Ordinance No. Date Comprehensive Plan N/A 5758 06/22/2015 Zoning N/A 5758 06/22/2015 Benson Hill Annexation N/A 5327 03/01/2008 E. PUBLIC SERVICES: 1. Existing Utilities a. Water: Water service will be provided by Soos Creek Water and Sewer. b. Sewer: Water service will be provided by Soos Creek Water and Sewer. c. Surface/Storm Water: There is no existing on-site storm drainage system. There is a 12 inch public storm drain west of the site along the western frontage of 113th Avenue SE that flows from north to south. There is also an existing catch basin at the southwest corner of the site. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 3 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL 2. Streets: The proposed development fronts both SE 168th St. and 113th Ave SE. along the southern and western property lines, respectively. 113th Ave SE is a Residential Access street, with an available right of way (ROW) width of 60 feet. SE 168th Street is a Collector Arterial street, with an available right of way (ROW) width of 60 feet. 3. Fire Protection: Renton Regional Fire Authority (RRFA) F. APPLICABLE SECTIONS OF THE RENTON MUNICIPAL CODE: 1. Chapter 2 Zoning Districts – Uses and Standards a. Section 4-2-020: Purpose and Intent of Zoning Districts b. Section 4-2-060: Zoning Use Table – Uses Allowed in Zoning Designations c. Section 4-2-110: Residential Development Standards d. Section 4-2-115: Residential Design and Open Space Standards 2. Chapter 3 Environmental Regulations and Overlay Districts a. Section 4-3-050: Critical Area Regulations 3. Chapter 4 City-Wide Property Development Standards 4. Chapter 6 Streets and Utility Standards a. Section 4-6-060: Street Standards 5. Chapter 7 Subdivision Regulations a. Section 4-7-070: Detailed Procedures for Short Subdivision 6. Chapter 11 Definitions G. APPLICABLE SECTIONS OF THE COMPREHENSIVE PLAN: 1. Land Use Element H. FINDINGS OF FACT (FOF): 1. The Planning Division of the City of Renton accepted the above master application for review on May 17th, 2019 and determined the application complete on May 24th, 2019. The project was placed on hold July 17, 2019 and taken off hold July 25th, 2019. The project complies with the 120-day review period. 2. The project site is located at 16654 113th Ave SE. 3. The project site is currently developed with a single-family home and associated detached garage, which would be demolished as part of the project. 4. Access to the site would be provided via individual driveways off of SE 168th St and 113th Ave SE. 5. The property is located within the Residential Medium Density (MD) Comprehensive Plan land use designation. 6. The site is located within the Residential-8 (R-8) zoning classification. 7. There are three (3) trees located on site. The applicant is proposing to remove all three (3) . 8. The site is located in the Wellhead Protection Area Zone 2. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 4 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL 9. The site is primarily flat and minimual grading would be required (under 50 cubic yards). 10. The applicant is proposing to begin construction in spring of 2020 and end in fall of 2020. 11. Staff received no public or agency comment letters. 12. Representatives from various city departments have reviewed the application materials to identify and address issues raised by the proposed development. These comments are contained in the official file, and the essence of the comments has been incorporated into the appropriate sections of this report and the Departmental Recommendation at the end of this report. 13. Comprehensive Plan Compliance: The site is designated Residential Medium Density (MD) on the City’s Comprehensive Plan Map. The purpose of the MD designation is to allow a variety of single-family and multi-family development types, with continuity created through the application of design guidelines, the organization of roadways, sidewalks, public spaces, and the placement of community gathering places and civic amenities. The proposal is compliant with the following Comprehensive Plan Goals and Policies if all conditions of approval are met: Compliance Comprehensive Plan Analysis  Policy L-3: Encourage infill development of single-family units as a means to meet growth targets and provide new housing.  Goal L-H: Plan for high-quality residential growth that supports transit by providing urban densities, promotes efficient land utilization, promotes good health and physical activity, builds social connections, and creates stable neighborhoods by incorporating both built amenities and natural features.  Goal L-I: Utilize multiple strategies to accommodate residential growth, including:  Development of new single-family neighborhoods on large tracts of land outside the City Center,  Development of new multi-family and mixed-use in the City Center and in the Residential High Density and Commercial Mixed Use designations, and  Infill development on vacant and underutilized land in established neighborhoods and multi-family areas.  Goal L-U: Preserve, protect, and enhance the quality and functions of the City’s sensitive areas including: lakes, rivers, major and minor creeks, intermittent stream courses and their floodplains, wetlands, ground water resources, wildlife habitats, and areas of seismic and geological hazards.  Policy L-24: Manage urban forests to maximize ecosystem services such as stormwater management, air quality, aquifer recharge, other ecosystem services, and wildlife habitat.  Policy L-28: Minimize erosion and sedimentation in and near sensitive areas by requiring appropriate construction techniques and resource practices, such as low impact development.  Policy L-32: Emphasize the use of open ponding and detention, vegetated swales, rain gardens, clean roof run-off, right-of-way landscape strips, open space, and stormwater management techniques that mimic natural systems, maximize water quality and infiltration where appropriate, and which will not endanger groundwater quality.  Policy L-34: Ensure buildings, roads, and other features are located on less sensitive portions of a site when sensitive areas are present. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 5 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL  Policy L-36: Land uses in areas subject to flooding, seismic, geologic, and coal mine hazards should be designed to prevent property damage and environmental degradation before, during, and after construction.  Goal L-BB: Maintain a high quality of life as Renton grows by ensuring that new development is designed to be functional and attractive.  Goal L-FF: Strengthen the visual identity of Renton and its Community Planning Areas and neighborhoods through quality design and development.  Policy L-48: Address privacy and quality of life for existing residents by considering scale and context in infill project design.  Policy L-55: Preserve natural landforms, vegetation, distinctive stands of trees, natural slopes, and scenic areas that contribute to the City’s identity, preserve property values, and visually define the community and neighborhoods. 14. Zoning Development Standard Compliance: The site is classified Residential-8 (R-8) on the City’s Zoning Map. Development in the R-8 Zone is intended to create opportunities for new single-family residential neighborhoods and to facilitate high-quality infill development that promotes reinvestment in existing single-family neighborhoods. It is intended to accommodate uses that are compatible with and support a high-quality residential environment and add to a sense of community. The proposal is compliant with the following development standards, as outlined in RMC 4-2-110.A, if all conditions of approval are met: Compliance R-8 Zone Develop Standards and Analysis  Density: The allowed density range in the R-8 zone is a minimum of 4.0 to a maximum of 8.0 dwelling units per net acre. Net density is calculated after the deduction of sensitive areas, areas intended for public right-of-way, and private access easements. Staff Comment: Based on a net area of 19,072 square feet (20,412 square-foot gross area – 1,340 square feet of right-of-way [ROW] dedication), the proposal for three residential lots on the project site would result in a net density of 6.85 dwelling units per acre (3 lots / 0.44 acres = du/ac) which meets the minimum and maximum density requirements of the R-8 zone.  Lot Dimensions: The minimum lot size permitted in the R-8 zone is 5,000 sq. ft. A minimum lot width of 50 feet is required (60 feet for corner lots) and a minimum lot depth of 80 feet is required. The following table identifies the proposed approximate dimensions for Lots 1 and 2. Proposed Lot Lot Size (sq. ft.) Lot Width (ft.) Lot Depth (ft.) Lot 1 7,164 52.51 140.09 Lot 2 (corner lot) 6,704 80.6 84.29 Lot 3 5,002 60.04 84.29 Staff Comment: All lots will comply with the lot dimension standards of the R-8 zone. Compliant if condition of approval is met Setbacks: The required setbacks in the R-8 zone are as follows: front yard is 20 feet, side yard is 5 feet, secondary front yard (applies to corner lots) is 15 feet, and the rear yard is 20 feet. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 6 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL Staff Comment: All lots have sufficient building area to develop a single-family home and comply with the setbacks of the zone. Setbacks would be verified at the time of building permit review. If retained, the existing residence and shed would not comply with Residential-8 (R-8) setback requirements. Therefore, staff recommends as a condition of approval that the applicant obtain a demolition permit and complete a final inspection from the City for the removal of the residence and shed located on proposed Lots 1 and 2 in order to comply with Residential-8 (R-8) setbacks of the zone prior to final plat approval.  Building Standards: The R-8 zone has a maximum building coverage of 50% and a maximum impervious surface coverage of 65%. In the R-8 zone, a maximum building height of 2 stories with a wall plate height of 24 feet is permitted. Roofs with a pitch equal to or greater than 4:12 may project an additional six (6) vertical feet from the maximum wall plate height. If the height of wall plates on a building are less than the states maximum the roof may project higher to account for the difference, yet the combined height of both features shall not exceed the combined maximums. Common rooftop features, such as chimneys, may project an additional four (4) vertical feet from the roof surface. Non-exempt vertical projections (e.g., roofs pitched less than 4:12, decks, railings, etc.) may extend up to six (6) vertical feet above the maximum wall plate height if the projection is stepped back one-and-a-half (1.5) horizontal feet from each minimum building setback line for each one (1) vertical foot above the maximum wall plate height. Wall plates supporting a primary roof surface that has only one (1) sloping plane (e.g., shed roof) may exceed the stated maximum if the average of wall plate heights is equal or less than the maximum wall plate height allowed. Staff Comment: Building height, building coverage, and impervious surface coverage for the new single-family residences would be verified at the time of building permit review. Compliant if condition of approval is met Landscaping: The City’s landscape regulations (RMC 4-4-070) require a 10-foot landscape strip along all public street frontages. Additional minimum planting strip widths between the curb and sidewalk are established according to the street development standards of RMC 4-6-060. Street trees and, at a minimum, groundcover, are to be located in this area when present. Spacing standards shall be as stipulated by the Department of Community and Economic Development, provided there shall be a minimum of one street tree planted per address. Any additional undeveloped right-of- way areas shall be landscaped unless otherwise determined by the Administrator. Where there is insufficient right-of-way space or no public frontage, street trees are required in the front yard subject to approval of the Administrator. A minimum of two trees are to be located in the front yard prior to final inspection for the new Single- Family Residence. Staff Comment: A Conceptual Landscape and Tree Retention Plan prepared by Site Surveying (Exhibit 3), was submitted with the short plat application. The plan does not show the required 10-foot on-site landscape strip along the street frontage of 113th Ave SE and 168th Ave SE. The applicant has proposed two (2) street trees within the ROW fronting Lot 3, four (4) street trees in the ROW fronting Lot 2, and no street trees in front of Lot 1, for a total of six (6) trees. Therefore the Conceptual Landscape Plan is not compliant with RMC 4-4-070. In addition, the species and size of the trees are not indicated on the plan. Staff recommends as a condition of approval that the applicant DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 7 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL submit an updated conceptual landscape plan with the civil construction permit applicant demonstrating compliance with the street tree and on-site landscaping requirements for review and approval by the Current Planning Project Manager. Compliant if Condition of Approval under FOF 14 (Landscaping) is met Tree Retention: The City’s adopted Tree Retention and Land Clearing Regulations (4- 4-130) require the retention of 30 percent of trees in a residential development. Significant trees shall be retained in the following priority order: Priority One: Landmark trees; significant trees that form a continuous canopy; significant trees on slopes greater than twenty percent (20%); significant trees adjacent to critical areas and their associated buffers; and significant trees over sixty feet (60') in height or greater than eighteen inches ( 18") caliper. Priority Two: Healthy tree groupings whose associated undergrowth can be preserved; other significant native evergreen or deciduous trees; and other significant non- native trees. Priority Three: Alders and cottonwoods shall be retained when all other trees have been evaluated for retention and are not able to be retained, unless the alders and/ or cottonwoods are used as part of an approved enhancement project within a critical area or its buffer. A minimum tree density shall be maintained on each residentially zoned lot. For detached single-family development, the minimum tree density is two (2) significant trees for every five thousand (5,000) square feet. The tree density may consist of existing trees, replacement trees, trees required pursuant to RMC 4-4-070F1, Street Frontage Landscaping Required, or a combination. Staff Comment: A total of three (3) significant trees were identified on the Tree Retention and Landscape Plan prepared by Site Surveying (see Exhibit 3). The three trees are located in the future ROW dedication near the location of the future sidewalk and planting strip along 113th Ave SE. Therefore no trees are required to be retained on the site. Lots 1 and 2 should provide a minimum of three new trees in order to comply with the tree density regulations. Lot 3 shall provide a minimum of two new trees in order to comply with the tree density regulations. Trees designated as street trees do not count towards the minimum tree density requirement. Therefore the applicant shall show the required trees on the updated Conceptual Landscape Plan to be submitted with the Civil Construction Permit application.  Parking: Parking regulations require that a minimum of two parking spaces be provided for each detached dwelling. Driveway cuts are required to be a minimum of 5 feet from property lines and new driveways may be a maximum of 16 feet in width at the property line. Maximum driveway slopes shall not exceed fifteen percent (15%); provided, that driveways exceeding eight percent (8%) shall provide slotted drains at the lower end with positive drainage discharge to restrict runoff from entering the garage/residence or crossing any public sidewalk. Staff Comment: Each lot contains adequate area for the provision of two parking spaces per dwelling unit, as required by RMC 4-4-080 required parking spaces. Parking DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 8 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL 15. Design Standards: Residential Design and Open Space Standards (RMC 4-2-115) are applicable in the R- 4, R-6, R-8 zone. The Standards implement policies established in the Land Use Element of the Comprehensive Plan. Compliance with Site Design Standards must be demonstrated prior to approval of the subdivision. Compliance with Residential Design Standards would be verified prior to issuance of the building permit for the new single-family homes. The proposal is consistent with the following design standards, unless noted otherwise: Compliance Design Standards R-8 and Analysis Compliance not yet demonstrated Garages: If an attached garage is wider than twenty six feet (26’), at least one (1) garage door shall be recessed a minimum of four feet (4’) from the other garage door. Additionally, one of the following is required: 1. The front porch projects in front of the garage a minimum of five feet (5’), and is a minimum of twelve feet (12’) wide, or 2. The roof extends at least five feet (5') (not including eaves) beyond the front of the garage for at least the width of the garage plus the porch/stoop area, or 3. The garage is alley accessed, or 4. The garage entry does not face a public and/or private street or an access easement, or 5. The garage width represents no greater than fifty percent (50%) of the width of the front facade at ground level, or 6. The garage is detached, or 7. The garage doors contain a minimum of thirty percent (30%) glazing, architectural detailing (e.g. trim and hardware), and are recessed from the front façade a minimum of five feet (5’), and from the front porch a minimum of seven feet (7’). Staff Comment: Compliance for this standard would be verified at the time of building permit review. Compliance not yet demonstrated Primary Entry: The entry shall include a porch or stoop with a minimum depth of five feet (5') and minimum height of twelve inches (12") above grade. Exception: in cases where accessibility (ADA) is a priority, an accessible route may be taken from a front driveway. requirements and driveway grades for each of the new residences proposed would be verified at the time of building permit review. N/A Fences and Retaining Walls: In any residential district, the maximum height of any fence, hedge or retaining wall shall be seventy two inches (72"). Except in the front yard and side yard along a street setback where the fence shall not exceed forty eight inches (48") in height. There shall be a minimum three-foot (3') landscaped setback at the base of retaining walls abutting public rights-of-way. Staff Comment: The applicant has not proposed any new retaining walls, fences, or hedges as part of the short plat. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 9 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL Staff Comment: Compliance for this standard would be verified at the time of building permit review. The primary entry for Lots 1 and 2 shall front 113th Ave. SE and the primary entry for Lot 3 shall front 168th Ave. Compliance not yet demonstrated Facade Modulation: One of the following is required: 1. An offset of at least one story that is at least ten feet (10') wide and two feet (2') in depth on facades visible from the street, or 2. At least two feet (2') offset of second story from first story on one street facing facade. Staff Comment: Compliance for this standard would be verified at the time of building permit review. Compliance not yet demonstrated Windows and Doors: Windows and doors shall constitute twenty-five percent (25%) of all facades facing street frontage or public spaces. Staff Comment: Compliance for this standard would be verified at the time of building permit review. N/A Scale, Bulk, and Character: N/A Compliance not yet demonstrated Roofs: A variety of roof forms appropriate to the style of the home shall be used. Staff Comment: Compliance for this standard would be verified at the time of building permit review. Compliance not yet demonstrated Eaves: Both of the following are required: 1. Eaves projecting from the roof of the entire building at least twelve inches (12") with horizontal fascia or fascia gutter at least five inches (5") deep on the face of all eaves, and 2. Rakes on gable ends must extend a minimum of two inches (2") from the surface of exterior siding materials. Staff Comment: Compliance for this standard would be verified at the time of building permit review. Compliance not yet demonstrated Architectural Detailing: If one siding material is used on any side of the dwelling that is two stories or greater in height, a horizontal band that measures at least eight inches (8") is required between the first and second story. Additionally, one of the following is required: 1. Three and one half inch (3 1/2") minimum trim surrounds all windows and details all doors, or 2. A combination of shutters and three and one half inches (3 1/2") minimum trim details all windows, and three and one half inches (3 1/2") minimum trim details all doors. Staff Comment: Compliance for this standard would be verified at the time of building permit review. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 10 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL Compliance not yet demonstrated Materials and Color: For subdivisions and short plats, abutting homes shall be of differing color. Color palettes for all new dwellings, coded to the home elevations, shall be submitted for approval. Additionally, one of the following is required: 1. A minimum of two (2) colors is used on the home (body with different color trim is acceptable), or 2. A minimum of two (2) differing siding materials (horizontal siding and shingles, siding and masonry or masonry-like material, etc.) is used on the home. One alternative siding material must comprise a minimum of thirty percent (30%) of the street facing facade. If masonry siding is used, it shall wrap the corners no less than twenty four inches (24"). Staff Comment: Compliance for this standard would be verified at the time of building permit review. 16. Critical Areas: Project sites which contain critical areas are required to comply with the Critical Areas Regulations (RMC 4-3-050). The proposal is consistent with the Critical Areas Regulations, if all conditions of approval are complied with: Compliance Critical Areas Analysis  Wellhead Protection Areas: Staff Comment: The project site is located in the Wellhead Protection Area Zone 2. A fill source statement is required to be submitted at the time of Construction Permit submittal if any fill is brought on-site from another location. 17. Compliance with Subdivision Regulations: RMC 4-7 Provides review criteria for the subdivisions. The proposal is consistent with the following subdivision regulations if all conditions of approval are complied with: Compliance Subdivision Regulations and Analysis Compliant if condition of approval is met Access: Each lot must have access to a public street or road. Access may be by a shared driveway per the requirements of RMC 4-6-060 Street Standards. In the R-6 and R-6, new lots shall utilize an alley or vehicular access and shall orient new homes towards to the rear of the property. The maximum width of single loaded garage driveways shall not exceed nine feet (9') and double loaded garage driveways shall not exceed sixteen feet (16'). Staff Comment: The applicant is proposing to access each lot with individual driveways off of SE 168th St (for Lots 2 and 3) and 113th Ave SE (for Lot 1). Alley access was determined by staff to be unfeasible for the proposed project due to the lack of available ROW at the rear of the property. However, in order to ensure the project achieves the objectives associated with the alley requirement, the applicant should explore the feasibility of accessing Lots 1, 2 and 3 via a joint use driveway off of 113th Ave SE. Although RMC 4-4-080.I.9 only allows for two lots to utilize a joint-use driveway, staff supports a modification to allow for all three lots to utilize the joint-use driveway in accordance with the requirements in RMC 4-4-080. Therefore, as a condition of approval, staff recommends that the applicant utilize a joint-use driveway located off DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 11 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL of 113th Ave SE for access to Lots 1, 2, and 3, or a similar alternative approved by the Current Planning Project Manager. In addition, staff recommends that lots 2 and 3 be required to utilize rear-load garages and Lot 1 utilize a side or rear-load garage. N/A Blocks: Blocks shall be deep enough to allow two (2) tiers of lots. Staff Comment: Not applicable, no blocks are proposed. Projects are exempt from block depth regulation when the location and extent of environmental constraints prevent a standard plat land configuration.  Lots: The size, shape, orientation, and arrangement of the proposed lots comply with the requirements of the Subdivision Regulations and the Development Standards of the R-8 zone and allow for reasonable infill of developable land. All of the proposed lots shall meet the requirements for minimum lot size, depth, and width. Width between side lot lines at their foremost points (i.e., the points where the side lot lines intersect with the street right-of-way line) shall not be less than eighty percent (80%) of the required lot width except in the cases of (1) pipestem lots (or flag lot), which shall have a minimum width of twenty feet (20') and (2) lots on a street curve or the turning circle of cul-de-sac (radial lots), which shall be a minimum of thirty five feet (35'). No residentially zoned lot shall have a depth-to-width ratio greater than four-to-one (4:1). Pipestem lots may be permitted for new plats to achieve the minimum density within the Zoning Code when there is no other feasible alternative to achieving the minimum density. Staff Comment: Proposed Lots 1, 2, and 3 meet the minimum lot dimensional requirements in the R-8 zone. Complaint if condition of approval is met Streets: The proposed street system shall extend and create connections between existing streets per the Street Standards outlined in RMC 4-6-060 Street Standards. Staff Comment: Access to the proposed project would be provided by one driveway per lot off of the two fronting streets. The existing ROW width of 113th Ave SE, a Residential Access Street, is approximately 60 feet. To meet the City’s complete street standards, a minimum ROW width of 53 feet is required. The applicant has submitted a plan for street improvements including a 5 foot wide sidewalk, 8 foot wide planter strip, and 0.5 foot wide curb (Exhibit 2). The existing ROW width of SE 168th St, a Collector Arterial Street, is approximately 60 feet. The minimum ROW width for a Collector Arterial Street is 83 feet with a 30 feet wide travel width, 8 feet wide paved parking width on both sides, 0.5 feet wide curbs, 8 feet wide planter, 8 feet wide sidewalks, and clear width back of sidewalks. The applicant is responsible for half-street improvements along the subject property’s frontage. The City’s Transportation department has mentioned that the existing curb to curb width of 44 feet may be sufficient at this location. Street frontage improvements including 0.5 feet wide curb, 8 feet wide landscaped planter, 8 feet wide sidewalk, and 2 feet width back of sidewalk is required to be provided on the frontage. Therefore, staff recommends as a condition of approval that the applicant submit a street modification request to provide the street section and ROW dedication recommended by the Transportation department instead of the code required larger DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 12 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL ROW dedication, for review and approval or develop the code required frontage with a dedication of 11.5feet…. Payment of the transportation impact fee is applicable on the construction of the single- family houses at the time of application for the building permit. The current rate of transportation impact fee is $7,820.42 per new single-family house. Fees are subject to change. The transportation impact fee that is current at the time of building permit application would be levied. Credit would be given for the existing home on the site.  Relationship to Existing Uses: The proposed project is compatible with existing surrounding uses. Staff Comment: The proposed short plat is surrounded by existing detached single- family residences to the east, west, north and south of the site. The proposed lots are similar in size and shape to the existing surrounding development pattern in the area and would be consistent with the Comprehensive Plan and Zoning Code, which encourages residential infill development in the Residential Medium Density and R-8 zoning designations. Therefore, the proposal for new single-family homes would be compatible with the existing uses in the area. 18. Availability and Impact on Public Services: Compliance Availability and Impact on Public Services Analysis  Police and Fire: Police and Fire Prevention staff indicates that sufficient resources exist to furnish services to the proposed development; subject to the condition that the applicant provides Code required improvements and fees. For 2019, Fire impact fees are applicable at the rate of $829.77 per single-family residence. This fee is paid at time of building permit issuance.  Schools: It is anticipated that the Renton School District can accommodate any additional students generated by this proposal at the following schools: Cascade Elementary, Nelson Middle School and Lindbergh High School. Any new students from the proposed development would walk to the elementary school and middle school and would be bussed to high schools. The bus stop is located approximately 1,200 feet from the project site at the intersection of SE 164th ST and 114th Ave SE. Students would cross 113th Ave SE at the project site and walk along the west side of 113th Ave SE on a mix of sidewalk, gravel areas between the yards and street, and marked walkways with barrier curbing until reaching SE 164th St. The students would then cross SE 164th St at the crosswalk in order to access the bus stop on the other side of the road. Cascade Elementary is located approximately 0.4 miles away from the project site. When walking to school, students would walk along the north side of SE 168th St until the intersection of SE 168th St and 116th Ave SE. Students would then cross 116th Ave at the traffic-controlled intersection and continue walking north on the sidewalk located on the east side of 116th Ave SE until reaching the school. Nelsen Middle School is located approximately 0.5 miles from the project site. To get to the school, students would walk north on 113th Ave SE on a mix of sidewalk, gravel areas between the yards and street, and marked walkways with barrier curbing until reaching SE 164th St. Students would then turn west and continue along the south side of SE 164th St on a widened shoulder until reaching the intersection of 108th Ave SE and SE 164th St. Students would then use an existing crosswalk to cross 108th Ave SE and access the school property. Therefore safe routes for students are place for access to all schools. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 13 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL A School Impact Fee, based on new single-family lots, will be required in order to mitigate the proposal’s potential impacts to the Renton School District. The fee is payable to the City as specified by the Renton Municipal Code. For 2019, School impact fees are applicable at the rate of $6,877.00 per single-family residence. This fee is paid at time of building permit issuance.  Parks: A Park Impact Fee would be required for the future houses. For 2019, Park Impact Fees are applicable at a rate of $3,945.70 per single-family residence. This fee is payable at the time of building permit issuance. Compliant if condition of approval is met Storm Water: An adequate drainage system shall be provided for the proper drainage of all surface water. Staff Comment: According to the Geotechnical Report, Migizi Group and dated January 24, 2019 (see Exhibit 4), the project site is nearly level and is primarily vegetated with mowed grass, bushes, and multiple trees. Two test pits, dug to depth of eight feet with a mini-excavator, discovered 4 inches of topsoil underlain by approximately one foot of medium dense brown silty sand, underlain by approximately 6.5 feet of medium to very dense heavily mottled silty sand with gravel. Groundwater was encountered during testing of approximately 2 feet. The report concluded that soil erosion potential on the site can be mitigated through landscaping and surface water runoff control. Measures recommended to be employed during construction include installing silt fences, hay bales, mulching, control ditches, and diversion trenches. In order to ensure all measures proposed by the geotechnical engineer are implemented related to soil erosion and the foundation, staff recommends as a condition of approval the applicant comply with all recommendations found in the submitted Geotechnical Report. A Preliminary Drainage Plan and Technical Information Report (TIR), dated April 15, 2019 and prepared by Migizi Group, was submitted with the Land Use Application (see Exhibit 4). Based on the City of Renton’s flow control map, the site falls within the Flow Control Standards Forested site conditions and is located within the Soos Creek Drainage Basin. During review by staff, the report was found to be missing information and specifically does not address all 9 Core Requirements and 6 Special Requirements from the 2017 Renton Surface Water Design Manual. All nine core requirements and the six special requirements need to be discussed in the final Technical Information Report submitted at the time of Construction Permit application. In addition, appropriate on-site BMPs designed to mitigate for new runoff created by the development will need to be identified on the final drainage plan and report submitted at the time of Construction Permit application. If the applicant determines that that BMPs would not adequately migitate the on-site storm water and proposes a stormwater vault, the vault would be required to be located in a separate tract. See Advisory Notes (Exhibit 9) for additional comments. The Stormwater system development charge for each new single-family residence is $1,800.00. This is payable at construction permit issuance. A redevelopment credit of the stormwater system development charge in the amount of $1,800.00 will be applied to the existing home proposed to be demolished.  Water: The fire flow requirement for a single-family home is 1,000 gpm minimum for dwellings up to 3,600 square feet (including garage and basements). If the dwelling exceeds 3,600 square feet, a minimum of 1,500 gpm fire flow would be required. A minimum of one fire hydrant is required within 300-feet of the proposed buildings and two hydrants if the fire flow goes up to 1,500 gpm. In order to provide adequate fire DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 14 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL protection and to conform to City of Renton Code and Development Standards, the following improvements will be required: Each home shall be installed with a fire sprinkler system with a double check valve assembly (DCVA) for backflow prevention per the requirements of the Renton Regional Fire Authority.  Sanitary Sewer: Sewer service will be provided by Soos Creek Water and Sewer District. Approved sewer plans from Soos Creek Water and Sewer District should be provided to the City during the civil construction plan review stage. I. CONCLUSIONS: 1. The subject site is located in the Residential Medium Density (MD) Comprehensive Plan designation and complies with the goals and policies established with this designation, see FOF 13. 2. The subject site is located in the Residential-8 (R-8) zoning designation and complies with the zoning and development standards established with this designation provided the applicant complies with City Code and conditions of approval, see FOF 14. 3. The proposed short plat complies with the Residential Design and Open Space Standards provided the applicant complies with City Code and conditions of approval, see FOF 15. 4. The proposed short plat complies with the Critical Areas Regulations provided the applicant complies with City Code, see FOF 16. 5. The proposed short plat complies with the subdivision regulations as established by City Code and state law provided all advisory notes and conditions are complied with, see FOF 17. 6. The proposed short plat complies with the street standards as established by City Code, provided the project complies with all advisory notes and conditions of approval, see FOF 18. 7. There are safe walking routes to the school bus stop, see FOF 18. 8. There are adequate public services and facilities to accommodate the short plat, see FOF 18. J. DECISION: The Tran Short Plat , File No. LUA19-000113, SHPL-A, MOD, as depicted in Exhibit 2, is approved and is subject to the following conditions: 1. The applicant shall obtain a demolition permit and complete a final inspection from the City for the removal of the residence and accessory building located on proposed Lots 1 and 2 prior to short plat recording. 2. The applicant shall submit a Detailed Landscaping and Tree Retention plan that demonstrates compliance with the on-site landscaping and tree density regulations in RMC 4-4-130, at the time of construction permit application. The detailed landscape plan shall be reviewed and approved by the Current Planning Project Manager prior to construction permit issuance. 3. The applicant shall either submit a street modification request to provide the street section and ROW dedication recommended by the Transportation department instead of the code required larger ROW dedication or develop the code required street frontage improvements and associated dedication. If a street modification is requested, the modification shall be reviewed and approved by the City prior to construction permit application. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 15 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL 4.The applicant shall utilize a joint-use driveway located off of 113th Ave SE for access to lots 1, 2, and 3, or propose a similar alternative to be reviewed and approved by the Current Planning Project Manager at the time of construction permit application. In addition, the future homes on lots 2 and 3 shall utilize rear-load garages and Lot 1 shall utilize either a side or rear-load garage. 5.The applicant shall comply with all recommendations found in the submitted Geotechnical Report prepared by Migizi Group and dated January 24, 2019. DATE OF DECISION ON LAND USE ACTION: SIGNATURE: _____________ Jennifer Henning, Planning Director Date TRANSMITTED this 27th day of August, 2019 to the Owner/Applicant/Contact: Owner/Applicant: Sang Tran 16654 113th Ave SE Renton, WA 98056 Contact: Thomas Woldendorp, Site Surveying, Inc, 21923 NE 11th St, Sammamish, WA 98074 TRANSMITTED this 27th day of August, 2019 to the Parties of Record: Eleanor Ramirez 11312 168th St Renton, WA 98055 TRANSMITTED this 27th day of August, 2019 to the following: Chip Vincent, CED Administrator Brianne Bannwarth, Development Engineering Manager Amanda Askren, Property Services Vanessa Dolbee, Current Planning Manager Angela St. John, Fire Marshal K.LAND USE ACTION APPEALS, REQUEST FOR RECONSIDERATION, & EXPIRATION: The administrative land use decision will become final if the decision is not appealed within 14 days of the decision date. APPEAL: This administrative land use decision will become final if not appealed in writing to the Hearing Examiner on or before 5:00 PM on September 10, 2019. An appeal of the decision must be filed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680), together with the required fee to the Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. RMC 4-8-110.B governs appeals to the Hearing Examiner and additional information regarding the appeal process may be obtained from the City Clerk’s Office, (425) 430-6510. EXPIRATION: The administrative short plat decision will expire two (2) years from the date of decision. A single one (1) year extension may be requested pursuant to RMC 4-7-070.M. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F 8/27/2019 | 9:31 AM PDT City of Renton Department of Community & Economic Development Tran Short Plat Administrative Report & Decision LUA19-000113, SHPL-A, MOD Report of August 27, 2019 Page 16 of 16 D_Admin Decision_Tran Short Plat_190812_v4_FINAL RECONSIDERATION: Within 14 days of the decision date, any party may request that the decision be reopened by the approval body. The approval body may modify his decision if material evidence not readily discoverable prior to the original decision is found or if he finds there was misrepresentation of fact. After review of the reconsideration request, if the approval body finds sufficient evidence to amend the original decision, there will be no further extension of the appeal period. Any person wishing to take further action must file a formal appeal within the 14-day appeal time frame. THE APPEARANCE OF FAIRNESS DOCTRINE: provides that no ex parte (private one-on-one) communications may occur concerning the land use decision. The Doctrine applies not only to the initial decision, but to Appeals to the Hearing Examiner as well. All communications after the decision/approval date must be made in writing through the Hearing Examiner. All communications are public record and this permits all interested parties to know the contents of the communication and would allow them to openly rebut the evidence in writing. Any violation of this doctrine could result in the invalidation of the appeal by the Court. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F CITY OF RENTON DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT ADMINISTRATIVE REPORT & DECISION EXHIBITS Project Name: Tran Short Plat Land Use File Number: LUA19-000113, SHPL-A Date of Report August 27, 2019 Staff Contact Alex Morganroth Associate Planner Project Contact/Applicant Thomas Woldendorp Site Surveying, Inc 21923 NE 11th St, Sammamish, WA 98074 Project Location 16654 113th Ave SE The following exhibits are included with the ERC report: Exhibit 1: Administrative Decision Exhibit 2: Site Plan Exhibit 3: Landscape and Tree Retention Plan prepared by Site Surveying Exhibit 4: Drainage Report and Technical Information Report (TIR) prepared by Migizi Group, Inc (dated April 15, 2019) Exhibit 5: Geotechnical Report prepared by Migizi Group (dated January 24, 2019) Exhibit 6: Advisory Notes DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F Exhibit 2DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F Exhibit 3 DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F Technical Information Report Drainage Report 16654 113th Ave SE Renton, Washington 98055 King County P/N 0088000930 April 15, 2019 prepared for: Sang Tran 16654 113th Ave SE Renton, Washington 98055 (206) 680-5568 prepared by: Migizi Group, Inc. PO Box 44840 Tacoma, Washington 98448 (253) 537-9400 MGI Project P1239-T18 Entire Document available Request Exhibit 3 DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F Geotechnical Engineering Report Proposed Short Plat 16654 113th Ave SE Renton, Washington 98055 P/N 0088000930 January 24, 2019 prepared for: Sang Tran 16654 113th Ave SE Renton, Washington 98055 prepared by: Migizi Group, Inc. PO Box 44840 Tacoma, Washington 98448 (253) 537-9400 MGI Project P1239-T18 Entire Document available Request Exhibit 5 DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Page 1 of 5 LUA19-000113 ADVISORY NOTES TO APPLICANT The following notes are supplemental information provided in conjunction with the administrative land use action. Because these notes are provided as information only, they are not subject to the appeal process for the land use action. Planning: (Contact: Alex Morganroth, 425-430-7219, amorganroth@rentonwa.gov) 1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise approved by the Development Services Division. 2. Commercial, multi-family, new single family and other nonresidential construction activities shall be restricted to the hours between seven o’clock (7:00) a.m. and eight o’clock (8:00) p.m., Monday through Friday. Work on Saturdays shall be restricted to the hours between nine o’clock (9:00) a.m. and eight o’clock (8:00) p.m. No work shall be permitted on Sundays. 3. Within thirty (30) days of completion of grading work, the applicant shall hydroseed or plant an appropriate ground cover over any portion of the site that is graded or cleared of vegetation and wh ere no further construction work will occur within ninety (90) days. Alternative measures such as mulch, sodding, or plastic covering as specified in the current King County Surface Water Management Design Manual as adopted by the City of Renton may be proposed between the dates of November 1st and March 31st of each year. The Development Services Division’s approval of this work is required prior to final inspection and approval of the permit. 4. A National Permit Discharge Elimination System (NPDES) permit is required when more than one acre is being cleared. 5. The applicant will be required to submit a Final Stream Mitigation Report and Maintenance and Monitoring proposal. In addition, the applicant will be required to comply with all the code requirements of RMC 4-3-050 Critical Areas. This includes, but is not limited to, placing the critical area within a Native Growth Protection Easement, providing fencing and signage, and providing the City with a site restoration surety device and, later, a maintenance and monitoring surety device. 6. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be retained. 7. The applicant shall erect and maintain six foot (6') high chain link temporary construction fencing around the drip lines of all retained trees, or along the perimeter of a stand of retained trees. Placards shall be placed on fencing every fifty feet (50') indicating the words, “NO TRESPASSING – Protected Trees” or on each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees. 8. This permit is shall comply with the Bald and Golden Eagle Protection Act. The permitted is respons ible for adhering to the U.S. Fish and Wildlife Service National Bald Eagle Management Guidelines (2007) and /or your U.S. Fish and Wildlife Service permit. Development Engineering: (Contact: Jonathan Chavez, 425-430-7288, jchavez@rentonwa.gov) 1. See Attached Development Engineering Memo dated June 14, 2019 Fire Authority: Exhibit 6 DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F ADVISORY NOTES TO APPLICANT Page 2 of 5 LUA**-000*** (Contact: Corey Thomas, 425-430-7024, cthomas@rentonwa.gov) 1. The fire flow requirement for a single family home is 1,000 gpm minimum for dwellings up to 3,600 square feet (including garage and basements). If the dwelling exceeds 3,600 square feet, a minimum of 1,500 gpm fire flow would be required. A minimum of on e new fire hydrant is required within 300- feet of the proposed buildings and two hydrants if the fire flow goes up to 1,500 gpm. A certificate from the Soos Creek Water Department will be required to assure the demand can be met. 2. Fire impact fees are applicable at the rate of $829.77 per new residential unit. A credit is given for the demolition of the existing houses. This fee is paid at time of building permit issuance. 3. Fire department apparatus access roadways are adequate as provided by the existin g public streets. Building: (Contact: Craig Burnell, 425-430-7290, cburnell@rentonwa.gov) 1. Recommendations of the geotechnical shall be followed. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F ADVISORY NOTES TO APPLICANT Page 3 of 5 LUA**-000*** DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: June 14, 2019 June 20, 2011 TO: Alex Morganroth, Planning FROM: Jonathan Chavez, Development Engineering SUBJECT: Sang Tran Short Plat 16654 113th Avenue SE LUA19-000113 I have reviewed the Land Use Application submittal for the Sang Tran Short Plat at 16654 113th Avenue SE (KC Parcel ID: 0088000930). The applicant is proposing to subdivide the existing lot into 3 lots for single family homes. The existing home is proposed to be removed. EXISTING CONDITIONS The Site is approximately .50 acres in size and is square in shape. The existing site is developed with an existing single family residence and lawn located throughout the parcel. Storm The site contains an existing single family home surrounded by lawn area. There is no mapped on-site conveyance system. The current site topography appears to drain the runoff from the site to the south. There is a 12” public storm drain west of the site along the western frontage of 113th Avenue SE that flows from north to south. There is also an existing catch basin at the southwest corner of the site. Streets The proposed development fronts both SE 168th St. and 113th Ave SE. along the southern and western property lines, respectively. 113th Ave SE is a Residential Access street, with an available right of way (ROW) width of 60 feet. SE 168th Street is a Collector Arterial street, with an available right of way (ROW) width of 60 feet. CODE REQUIREMENTS WATER 1. Water service is provided by Soos Creek Water and Sewer District. 2. A water availability certificate from Soos Creek Water and Sewer District is required as part of the Land use Application. 3. Fire hydrants shall conform to Renton Fire Authority requirements. 4. Approved water plans from Soos Creek Water and Sewer District shall be provided to the City during the civil construction plan review stage. SEWER 1. Wastewater service is provided by Soos Creek Water and Sewer District. 2. A sewer availability certificate from Soos Creek Water and Sewer District is required as a part of the Land use Application. 3. Approved sewer plans from Soos Creek Water and Sewer District shall be provided to the City during the civil construction plan review stage. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F ADVISORY NOTES TO APPLICANT Page 4 of 5 LUA**-000*** SURFACE WATER 1. Refer to Figure 1.1.2.A – Flow Chart to determine what type of drainage review is required for this site. The site falls within the City’s Flow Control Duration Standard area matching Forested Conditions. The site falls within the Soos Creek Drainage Basin. Drainage plans and a drainage report complying with the adopted 2017 Renton Surface Water Design Manual (RSWDM) will be required. a. Update the flow control model calculations to reflect all impervious areas created by this project (combined), including frontage improvements. The full WWHM PDF Report Shall be provided along with the TIR. b. Address all 9 Core Requirements and all 6 Special Requirements. c. Follow guidelines for Full Drainage Report on Section 2.3.1.1 of the 2017 RSWDM. d. All calculated areas in the report must match areas shown on Civil and Survey Plans. 2. On-site BMPs satisfying Core Requirement #9 will be required for the site and each individual lots to the extent feasible. On-site BMPs shall be evaluated in order of preference by feasibility as described in Section C.1.3 of the 2017 RSWDM. Final review and approval of the lot BMPs will be evaluated during the review of the Building Permit Application. 3. A new storm drainage conveyance system is required along the 113th Ave SE frontage. Storm drainage improvements along public street frontages are required to conform to the City’s street standards. Any new storm drain installed on or off-site shall be designed and sized in accordance with standards found in Chapter 4 of the 2017 RSWDM. Calculations and models used for design of any conveyance systems shall be provided in this TIR. 4. If the new plus replaced pollution generating impervious surface exceeds 5,000 SF, the applicant will be required to provide basic water quality treatment. All proposed stormwater facilities shall be designed in accordance with the current RSWDM at the time of civil construction permit application. Separate structural plans will be required to be submitted for review and approval under a separate building permit for all proposed detention and/or water quality vaults. 5. A geotechnical soils report for the site is required per the 2017 Renton Surface Water Design Manual Section C.1.3. Information on the water table and soil permeability (measured infiltration rates), with recommendations of appropriate on-site BMPs per Core Requirement #9 and Appendix C shall be included in the report. The report should also include information concerning the soils, geology, drainage patterns and vegetation present shall be presented in order to evaluate the drainage, erosion control and slope stability for site development of the proposed plat. The applicant must demonstrate the development will not result in soil erosion and sedimentation, landslide, slippage, or excess surface water runoff. a. Provide infiltration rates. 6. As of September 28, 2018, the City of Renton has developed a new set of Surface Water Standard Plans to replace the existing set. These new Surface Water Standard Plans shall be used in all future drainage plan submittals. 7. The development is subject to stormwater system development charges (SDCs) for the new lots. The 2019 Surface water system development fee is $1,800.00 for each new lot. The SDC that is current is due at the time of construction permit issuance. TRANSPORTATION 1. 113th Ave SE is a Residential Access street, with an available right of way (ROW) width of 60 feet. RMC 4-6-060 requires a minimum 26 feet paved width on residential streets with 0.5 feet wide curbs, 8 feet wide landscaped planter, and 5 feet wide sidewalks. Street frontage improvements including minimum half street paved travel roadway width of 13 feet (from centerline of the right-of-way), 0.5 feet wide curb, 5 feet wide sidewalk, 8 feet wide landscaped planter, and drainage improvements are required to be provided on 113th Ave SE. The required minimum right of way of the public street shall extend to the back of the sidewalk. Per RMC 4-6-060, half street frontage improvements will be required to be built on 113th Ave SE frontage by the developer. a. The landscape strip must be behind the curb and the sidewalk at back of planter strip per RMC 4-6- 060. End sidewalk at north property line; sidewalk must match existing grade at north property line. 2. SE 168th Street is a Collector Arterial street, with an available right of way (ROW) width of 60 feet. Per RMC 4-6- 060, the minimum ROW width required on a 2 lane collector street is 83 feet with 30 feet wide travel width, 8 DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F ADVISORY NOTES TO APPLICANT Page 5 of 5 LUA**-000*** feet wide paved parking width on both sides, 0.5 feet wide curbs, 8 feet wide landscaped planter, 8 feet wide sidewalks, and clear width back of sidewalks. However, Transportation department has mentioned that the existing curb to curb width of 44 feet may be sufficient at this location. Street frontage improvements including 0.5 feet wide curb, 8 feet wide landscaped planter, 8 feet wide sidewalk, and 2 feet width back of sidewalk is required to be provided on the frontage. A street modification request may be submitted with the land use application to provide the Transportation department mentioned street section and the respective ROW dedication instead of the code required larger ROW dedication. Right of way dedication will be applicable, subject to survey. Per RMC 4-6-060, half street frontage improvements will be required to be built on SE 168th St. frontage by the developer. a. Provide sidewalk connection at the east end. Change in direction requires an ADA compliant landing (max slope 1.5%). 3. Collector Arterial street intersections shall have a minimum turning radius of 35 feet (RMC 4-6-060). 4. ADA compliant curb ramps are required to be provided. 5. No street lighting is required for projects with four or less residential units. 6. Per RMC 4-4-080, the maximum width of a single loaded garage driveway is 9’ and the maximum width of a double loaded garage driveway is 16’. If a garage is not present, the maximum driveway width is 16’. Driveways shall not be closer than 5’ to any property line. The driveways should be located as far away as possible from the street intersection as possible. a. The driveways shall have triangular wings and shall follow the latest iteration of STD. Plan 104.3. You can request a copy of this STD. plan from Jonathan Chavez, Development Engineering at jchavez@rentonwa.gov. 7. Paving and trench restoration within the City of Renton right of way shall comply with the City’s Trench Restoration and Street Overlay Requirements. 8. The transportation impact fee is based on the type of land use. For a single family dwelling, the 2019 transportation impact fee is $7,820.42. Transportation impact fees are subject to change based on the calendar year the building permit is issued. GENERAL COMMENTS 1. All existing and proposed utility lines (i.e. electrical, phone, and cable services, etc.) along property frontage or within the site must be underground. The construction of these franchise utilities must be inspected and approved by a City of Renton inspector. 2. Maximum exposed retaining wall height is 6-ft and shall be setback a minimum of 3-ft from the right-of-way as outlined in RMC 4-4-040 – Fences, Hedges and Retaining Walls. 3. Retaining walls that are 4’ or taller from bottom of footing and stormwater detention vaults will require a separate building permit. Structural calculations and plans prepared by a licensed engineer will be required as part of the building permit review. 4. Adequate separation between utilities as well as other features shall be provided in accordance with code requirements: a. 7-ft minimum horizontal and 1-ft vertical separation between storm and other utilities is required with the exception of water lines which require 10-ft horizontal and 1.5-ft vertical. b. The stormwater line should be minimum 5 feet away from any other structure or wall or building. c. Trench of any utility should not be in the zone of influence of the retaining wall or of the building. 5. All civil construction permits for utility and street improvements will require separate plan submittals. All utility plans shall confirm to the Renton Drafting Standards. A licensed Civil Engineer shall prepare the civil plans. Please visit the Development Engineering Forms page for the most up-to-date plan submittal requirements: http://rentonwa.gov/business/default.aspx?id=42473 6. A landscaping plan shall be included with the civil plan submittal. Each plan shall be on separate sheets. 7. A demo permit is required for the demolition of the existing building. The demo permit shall be acquired through the building department. 8. Fees quoted in this document reflect the fees applicable in the year 2019 only and will be assessed based on the fee that is current at the time of the permit application or issuance, as applicable to the permit type. Please visit www.rentonwa.gov for the current development fee schedule. DocuSign Envelope ID: 4D6083D6-4876-4573-A4BA-C270F8D2014F