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HomeMy WebLinkAboutD_Report_Admin_20180112DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Project Location Map D_Report_Admin_20180112 A. ADMINISTRATIVE REPORT & DECISION DECISION: APPROVED APPROVED SUBJECT TO CONDITIONS DENIED REPORT DATE: January 12, 2018 Project Name: Bethany Corner Short Plat Owner: Mary Nguyen, 9102 SE 41st Street, Mercer Island, WA 98040 Rodney & Stephanie Seek, 16451 111th Avenue SE, Renton, WA 98055 Applicant: Mark Seek, 15233 Manion Way NE, Duvall, WA 98019 Contact: Jonathan Murray, P.E., D.R. Strong Consulting Engineers, Inc., 620 7th Avenue, Kirkland, WA 98033 Project File Number: PR16-000504 Land Use File Number: LUA16-000958, SHPL-A Project Manager: Mona Davis, Senior Planner Project Summary: The applicant is requesting Preliminary Short Plat approval and Environmental (SEPA) review for the short subdivision of two underlying lots totaling 1.83 acres and zoned R-8 (Residential-8 units per acre) into nine lots for the future construction of detached single-family residential homes. This development includes a drainage tract (Tract A) and one critical area tract that comprises a portion of a critical areas buffer associated with an off-site stream (Tract C). The applicant has proposed additional landscaping to enhance the critical area buffer. All existing structures on the property are proposed to be removed as part of the development. Access to all lots will be provided via a new public roadway off 111th Avenue SE to be dedicated at final short plat recording. The applicant has proposed replacement trees in lieu of meeting the minimum tree retention requirements as part of the development proposal. Project Location: 16433 & 16451 – 111th Avenue SE (Parcels 008800-0560 & 008800-0570) Site Area: 1.83 Acres (79,710 SF) DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 2 of 18 D_Report_D_Report_Admin_20180112 B. EXHIBITS: Exhibit 1-11: Exhibits as shown in Environmental Review Committee Report Exhibit 12: Staff Report Exhibit 13: Topographic Survey (Existing Conditions) Exhibit 14: Technical Information Report by DR Strong dated April 10, 2017 Exhibit 15: Geotechnical Report by Associated Earth Sciences dated December 16, 2016 Exhibit 16: Arborist Report by Tree Harmony Arborists dated December 12, 2016 Exhibit 17: Public Comment Letters C. GENERAL INFORMATION: 1. Owner(s) of Record: Mary Nguyen 9102 SE 41st Street Mercer Island, WA 98040 Rodney & Stephanie Seek 16451 111th Avenue SE Renton, WA 98055 2. Zoning Classification: R-8 3. Comprehensive Plan Land Use Designation: Residential Medium Density 4. Existing Site Use: Two single family residences (proposed to be removed) 5. Critical Areas: A Type Ns stream is located off-site with an associated 50-foot buffer 6. Neighborhood Characteristics: a. North: Single family residential (R-8) b. East: Single family residential (R-8) c. South: Single family residential (R-8) d. West: Single family residential (R-8) 6. Site Area: 1.83 acres (79,710 SF) 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 DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 3 of 18 D_Report_D_Report_Admin_20180112 E. PUBLIC SERVICES: 1. Existing Utilities a. Water: Water service is provided by the Soos Creek Water and Sewer District. b. Sewer: Sewer service is provided by the Soos Creek Water and Sewer District. c. Surface/Storm Water: There is an existing storm drainage system in 111th Ave SE, which consists of a ditch and culverts. The existing property does not contain stormwater facilities. Runoff from the existing site includes two single family residences where no stormwater infrastructure currently exists on site. Runoff from the site sheet flows west over the western property line and into Big Soos Creek, which is located on an adjacent parcel. 2. Streets: The proposed development fronts on 111th Avenue SE along the east property line. 111th Avenue SE is classified as a Residential Access Road. Existing right-of-way (ROW) width is approximately 60 feet as shown and as measured using the King County Assessor’s Map. No frontage improvements currently exist along the property frontage. 3. Fire Protection: Renton Regional Fire Authority F. APPLICABLE SECTIONS OF THE RENTON MUNICIPAL CODE: 1. Chapter 2 Land Use Districts a. Section 4-2-020: Purpose and Intent of Zoning Districts b. Section 4-2-070: Zoning Use Table c. Section 4-2-110: Residential Development Standards d. Section 4-2-115: Residential Design and Open Space Standards 2. Chapter 3 Environmental Regulations a. Section 4-3-050: Critical Area Regulations 3. Chapter 4 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: 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 December 22, 2016 and determined the application complete on December 23, 2016. After preliminary review, the application was put on hold January 13, 2017 pending additional information needed to continue processing. Additional information was received on April 13, 2017 and the project was put on hold again on June 20, 2017 until the information requested was provided on December 19, 2017. The project complies with the 120-day review period. DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 4 of 18 D_Report_D_Report_Admin_20180112 2. The project site is located at 16433 and 16451 – 111th Avenue SE (Exhibit 13). 3. The project site is currently developed with two single family residences, which are proposed to be removed as part of the development (Exhibit 13). 4. Access to the site would be provided off of 111th Avenue SE via a new residential access road with 26 feet of paved roadway width and a hammerhead turnaround (Exhibit 5). 5. The property is located within the Residential Medium Density Comprehensive Plan land use designation. 6. The site is located within the R-8 zoning classification. 7. There are approximately 23 trees located on site of which the applicant is proposing to retain a total of one tree (Exhibit 4). 8. The site is mapped with a portion of stream buffer associated with an off-site Type Ns stream (Exhibit 10). 9. Approximately 12 cubic yards of material would be cut on site and approximately 9,571 cubic yards of fill is proposed to be brought into the site (Exhibit 5). 10. The applicant is proposing to construct the project in 2018. 11. Staff received two public comment letters (Exhibit 17). To address public comments the following report contains analysis related to sidewalks, mailbox location, traffic concerns, and critical areas. 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 have 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 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-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-P: Minimize adverse impacts to natural systems, and address impacts of past practice where feasible, through leadership, policy, regulation, and regional coordination. DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 5 of 18 D_Report_D_Report_Admin_20180112  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-29: Minimize erosion and sedimentation in and near sensitive areas by requiring appropriate construction techniques and resource practices, such as low impact development.  Policy L-30: Protect the integrity of natural drainage systems, existing land forms, and maintain wildlife habitat values by preserving and enhancing existing vegetation and tree canopy coverage to the maximum extent possible and by restoring hydrological flows and improving the condition of shorelines.  Policy L-32: Protect buffers along wetlands and surface waters to facilitate infiltration and maintain stable water temperatures, provide for biological diversity, reduce amount and velocity of run-off, and provide for wildlife habitat.  Policy L-33: 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-35: Ensure buildings, roads, and other features are located on less sensitive portions of a site when sensitive areas are present.  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-49: Address privacy and quality of life for existing residents by considering scale and context in infill project design.  Policy L-51: Respond to specific site conditions such as topography, natural features, and solar access to encourage energy savings and recognize the unique features of the site through the design of subdivisions and new buildings. 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 4-2-110A, 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. DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 6 of 18 D_Report_D_Report_Admin_20180112 Staff Comment: The project site has a net density of 64,362 square feet (1.47 acres) after the deduction of 14,939 square feet of right-of-way dedication and 409 square feet for the sensitive area buffer from the 79,710 square feet of gross site area. The proposal for nine lots on the net 1.47 acre site results in a net density of 6.12 dwelling units per net acre, which is within the density range permitted in 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 1-9: Proposed Lot Lot Size (sq. ft.) Lot Width (feet) Lot Depth (feet) Lot 1 (corner lot) 7,119 60 118 Lot 2 5,948 50 118 Lot 3 5,948 50 118 Lot 4 5,948 50 118 Lot 5 6,734 60 118 Lot 6 6,175 54 122 Lot 7 5,617 50 122 Lot 8 6,148 50 122 Lot 9 6,148 50 122 Staff Comment: All proposed lots would comply with the minimum lot size, width and depth requirements for the R-8 zone.  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. Staff Comment: The lots as proposed provide adequate area for the construction of new homes in compliance with the setback requirements. Two existing single-family residences are proposed for removal. Staff recommends, as a condition of approval, that demolition permits be obtained for the existing structures and all required inspections completed prior to the approval of the final short plat.  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 DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 7 of 18 D_Report_D_Report_Admin_20180112 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 preliminary landscape plan (Exhibit 7) was submitted as part of the preliminary short plat review. The landscape plan shows an 8-foot landscape strip between the curb and sidewalk and a 10-foot on-site landscape strip. Landscaping within the public right-of-way, Tract A (storm drainage tract), and Tract C (sensitive area tract) shall be installed prior to final short plat approval. Fifteen feet of landscaping is required surrounding all stormwater facilities. The detention vault may need to be relocated in order to provide the required landscaping. There shall be nine street trees located within the planter strip and only seven were shown on the preliminary landscape plan. Landscaping on the individual lots shall be installed at the time of the construction of the new homes. Staff recommends, as a condition of approval, that a detailed landscape plan, as defined in RMC 4-8-120, be submitted with the Construction Permit application to be reviewed and approved by the Current Planning Project Manager. Compliant if condition of approval 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 DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 8 of 18 D_Report_D_Report_Admin_20180112 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: The applicant submitted a Preliminary Tree Retention Plan (Exhibit 4) and Arborist Report prepared by Tree Harmony Arborists dated December 12, 2016 (Exhibit 16). The plan and report identifies a total of 23 trees on the subject property, of which 9 trees meet the retention criteria. Most of the significant trees are located within the proposed building pads and area to be improved with roadway, curb, gutter, planter strip and sidewalk. The applicant has proposed to retain one (1) tree in the southwest corner of the subject property. To meet the City’s retention standards, the applicant would be required to retain at least three (3) significant trees (0.30 x 9 = 2.7). As the location of many of the significant trees are within or near areas that are typically developed within building footprints and frontage improvements, replacement is reasonable. The applicant would be required to plant a total of 24 caliper inches to offset the removal of the two (2) significant trees (12 caliper inches x 2 trees removed = 24 caliper inches). The preliminary landscape plan (Exhibit 7) proposes the installation of eleven 2-inch caliper replacement trees for 22 caliper inches provided. The developer is proposing six Douglas Fir and five Western Red Cedar as replacement trees around the perimeter of the development to provide for additional landscape screening to the adjacent neighboring properties. Therefore staff recommends, as a condition of approval, the applicant submit a revised landscape plan that provides for one additional 2-inch caliper tree for a total of 24 caliper inches required to meet the replacement ratio. The detailed landscape plan shall be submitted with the construction permit application for review and approval by the Current Planning Project Manager. During construction, trees to be retained (i.e., protected trees) would be required to comply with the tree protection measures during construction as outlined in RMC 4-4- 130.H.9. Based upon the provided landscape plan, all lots would meet minimum tree density requirements.  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: The Conceptual Road and Grading Plan (Exhibit 5) details driveway cuts at least five (5) feet from side property lines. Driveways are shown 16 feet in width for each lot with slopes less than eight percent (8%). Proposed lots 6 and 7 are utilizing DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 9 of 18 D_Report_D_Report_Admin_20180112 a joint use driveway. Compliance with the parking and driveway requirements would be verified at the time of building permit review for the individual residences. However, there is adequate area provided on-site for the accommodation of two on-site parking spaces per lot. 15. Design Standards: Residential Design and Open Space Standards (RMC 4-2-115) are applicable in the 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:  Lot Configuration: One of the following is required of preliminary plat applications: 1. Lot width variation of 10 feet (10’) minimum of one per four (4) abutting street-fronting lots, or 2. Minimum of four (4) lot sizes (minimum of four hundred (400) gross square feet size difference) for street-fronting lots, or 3. A front yard setback variation of at least five feet (5’) minimum for at least every four (4) abutting street fronting lots. Staff Comment: Not applicable to short plats.  Lots shall be configured to achieve both of the following: 1. The location of stormwater infiltration LID facilities is optimized, consistent with the Surface Water Design Manual. Building and property line setbacks are specified in the Surface Water Design Manual for infiltration facilities. 2. Soils with good infiltration potential for stormwater management are preserved to the maximum extent practicable as defined by the Surface Water Design Manual. Staff Comment: A detention vault is proposed in Tract A and shall be designed in accordance with the 2009 KCSWDM and the City of Renton Amendments to the Manual. Separate structural plans will be required to be submitted for review and approval under a separate building permit for the detention and/or water quality vault. Special inspection from the building department is required. 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 DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 10 of 18 D_Report_D_Report_Admin_20180112 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. Staff Comment: Compliance for this standard would be verified at the time of building permit review. Compliance not yet demonstrated Façade 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. DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 11 of 18 D_Report_D_Report_Admin_20180112 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. 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 site is mapped with an off-site Type Ns stream providing for a buffer width of 50 feet that extends onto the subject property. No other critical areas have been identified on the project site. The proposal is consistent with the Critical Areas Regulations, if all conditions of approval are complied with: Compliant if condition of approval is met Streams: The following buffer requirements are applicable to streams in accordance with RMC 4-3-050G.2: Type F streams require a 115-foot buffer, Type Np streams require a 75-foot buffer, and Type Ns streams require a 50-foot buffer. An additional 15-foot building setback is required from the edge of all stream buffer areas. Staff Comment: A Critical Areas Study, prepared by Mark Rigos, P.E., Wetland Biologist, dated March 26, 2017 (Exhibit 9) was submitted and reviewed as part of the project application. According to the study, no wetlands were found on the subject properties; however, a drainage channel was discovered off-site within a forested greenbelt containing hydrophytic vegetation such as black cottonwood and red alder, which led to the conclusion that the channel’s appropriate designation was a Type Ns stream with a critical area buffer width of 50 feet pursuant to the Development Standards of the Critical Areas Regulations (RMC 4-3-050.G). The stream channel conveys tributary stormwater runoff generated from surrounding streets during large rain events. The report concluded that any stormwater diversion away from the stream channel will DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 12 of 18 D_Report_D_Report_Admin_20180112 have a negligible adverse impact on the stream itself and the stream will effectively maintain its existing hydrology. At its closest point, the channel is approximately 40 feet west of the site’s east property line, but the exact location was not surveyed. In order to identify the exact stream buffer encroachment, the applicant would need permission from the adjacent property owner to flag the channel’s Ordinary High Water Mark (OHWM) and have the flags surveyed, which was not obtainable. The wetlands biologist has recommended that the stream buffer remain forested and be planted with native landscape. The applicant has provided a Stream Buffer Enhancement Plan (Exhibit 10) that proposes additional plant materials, tree protection, and installation of a split rail fence along the buffer’s edge to include sensitive area signage that protects the critical area buffer within a separate tract and avoids any impacts. In addition, a 15-foot building setback line will be established from the edge of the buffer. If the stream location is estimated correctly, there would be no impacts to the stream or its buffer as a result of the proposed project. Therefore, staff recommends as a condition of approval, that the Stream Buffer Enhancement Plan be submitted as part of the construction plans to be approved by the Current Planning Project Manager. 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  Access: Each lot must have access to a public street or road. Access may be by a shared driveway per the requirements of the street standards. 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: A new dead end public residential access road (Road A) with 26 feet of paved roadway width and a hammerhead turnaround at the end of Road A have been proposed as the primary access for all lots within the proposed development. The entrance of the hammerhead turnaround shall serve as a joint use driveway to lots 6 and 7. Therefore, staff recommends as a condition of approval, that a note be provided on the final short plat that requires joint use driveway for lots 6 and 7 with no additional curb cuts off the residential access road. Driveways are shown 16 feet in width for each lot. The hammerhead turnaround shall have the design approved by the Administrator and Regional Fire Authority prior to construction permit approval. Any existing mailboxes that may need to be relocated as part of the new access proposed or frontage improvements required shall be coordinated with the users and postal service.  Blocks: Blocks shall be deep enough to allow two tiers of lots. Staff Comment: Not applicable; new blocks are not proposed.  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 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 DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 13 of 18 D_Report_D_Report_Admin_20180112 except in the cases of (1) pipe-stem lots, 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'). Staff Comment: The proposed lots are rectangular in shape with front yards orientated to Road A. Lot size and dimensional requirements of the R-8 zone are shown on the Preliminary Short Plat (Exhibit 3).  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: No right-of-way dedication will be required along 111th Avenue SE. Pursuant to RMC 4-6-060, half street improvements along 111th Avenue SE shall include a pavement width of 26 feet (13 feet from centerline), a 0.5 foot curb, an 8-foot planting strip, a 5-foot sidewalk, street trees and storm drainage improvements. The applicant is proposing to provide the required frontage improvements as part of the development. Current City of Renton standards require a turnaround for dead end streets greater than 150 feet. Dead end streets up to 300 feet may utilize a hammerhead turnaround provided it meets the requirements for emergency services access, including a 25-foot inside and 45-foot outside turning radius per RMC 4-6-060.H. The hammerhead turnaround shall have a design approved by the Administrator and Fire and Emergency Services. A new dead-end public residential access road (Road A) with 26 feet of paved roadway width and a hammerhead turnaround at the end of Road A has been proposed as the primary access for the internal lots of the development. The full street section includes the required 53-foot ROW with 26-feet of paved roadway (two 10-ft travel lanes with one 6- ft parking lane), 8-ft planter strips and 5-ft sidewalks on both sides of the street. Corner lots require a minimum radius of 15 feet for dedication of right-of-way. ADA access ramps shall be installed at all street crossings. Ramps shall be shown at each intersection and shall be oriented to provide direct pedestrian crossings. Street lighting and street trees are required to meet current City standards. Lighting plans have been submitted with the land use application. Refer to City Code 4-4-080 regarding driveway regulations. Driveways shall be designed in accordance with City standard plans 104.1 and 104.2. Paving and trench restoration shall comply with the City’s Trench Restoration and Overlay requirements. A Traffic Impact Analysis is required when the estimated vehicular traffic generated from a proposed development exceeds 20 vehicles per hour in either the AM (6:00-9:00) or PM (3:00-6:00) peak periods. The proposed project does not exceed this threshold and therefore is not required to provide a traffic impact analysis. Payment of the transportation impact fee is applicable on the construction of the development at the time of application for the building permit. The current rate of transportation impact fee is $5,430.85 per dwelling unit for single family homes. The project proposes the addition of seven (7) new residences (9 new single family homes with 2 existing homes to be removed). The estimated total fee is $38,015.95. Fees are subject to change. The transportation impact fee that is current at the time of building permit application will be levied.  Relationship to Existing Uses: The proposed project is compatible with existing surrounding uses. DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 14 of 18 D_Report_D_Report_Admin_20180112 Staff Comment: The project site is surrounded by existing single family residential uses within the R-8 zone. The project is designed to accommodate the construction of the nine new single-family residences. The new lots proposed are consistent with the size, shape, and orientation requirements of the R-8 zone. The proposed stormwater facility within the storm drainage tract (Tract A) is an underground vault. The required perimeter landscaping provides for an amenity to the neighborhood and attractive landscape buffer. A stormwater detention pond within the tract would not provide for the same level of aesthetic benefits as the proposed vault. Therefore, staff recommends as a condition of approval that any proposal to convert the stormwater vault within the tract to a stormwater detention pond be considered a Major Plat Amendment subject to the requirements outlined under RMC 4-7-080.M.2. 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. The fire flow requirements 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. Existing fire hydrants can be counted toward the requirements as long as they meet current code including 5 inch storz fittings. A water availability certificate is required from Soos Creek Water and Sewer District. Fire department apparatus access roadways are required to be a minimum of 20 feet wide and fully paved, with 25 feet inside and 45 feet outside turning radius. Fire access roadways shall be constructed to support a 30 ton vehicle with 75 psi point loading. Access is required within 150 feet of all points on the building. An approved turnaround is required for all dead end streets exceeding 150 feet in length. Payment of the fire impact fee is applicable at the time of building permit issuance. The current rate of the fire impact fee is $718.56 per single family dwelling unit. Fees are subject to change. The fire impact fee that is current at the time of building permit application will be levied.  Schools: It is anticipated that the Renton School District can accommodate any additional students generated by this proposal at the following schools: Cascade Elementary, Nelsen Middle School and Lindbergh High School. Elementary and middle school students from the proposed development would walk to their schools approximately ½ mile from the development and high school students would take the bus. The nearest bus stop is located approximately 0.26 miles from the project site at SE 164th Street and 114th Avenue SE. The proposed project includes the installation of frontage improvements along the 111th Avenue SE frontage, including sidewalks. Students would walk north on 111th Avenue SE to SE 164th to the respective schools. Based on information provided in the application, staff was unable to verify safe routes to school. Therefore, staff recommends as a condition of approval, that a safe walking route to the schools and bus stop shall be verified with the construction permit application. 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 DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 15 of 18 D_Report_D_Report_Admin_20180112 City as specified by the Renton Municipal Code. Currently the fee is assessed at $6,432.00 per new single family residence. Fees are subject to change and will be assessed at the time of building permit application based upon the current fee schedule.  Parks: A Park Impact Fee would be required for the future houses. The current Park Impact Fee is $2,740.07. The fee in effect at the time of building permit application is applicable to this project and is payable at the time of building permit issuance.  Storm Water: An adequate drainage system shall be provided for the proper drainage of all surface water. Staff Comment: A preliminary Drainage Plan (Exhibit 6) and Technical Information Report (Exhibit 14) prepared by D.R. Strong Consulting Engineers were submitted to the City as part of the short plat submittal. Based on the City of Renton’s flow control map, the site falls within the Flow Control Duration Standard area matching Forested Site Conditions and is within the Soos Creek Drainage Basin. The development is subject to Full Drainage Review in accordance with the 2009 King County Surface Water Design Manual (KCSWDM) and the 2010 City of Renton Amendments to the KCSWDM. All core requirements and the six special requirements are discussed in the Technical Information Report. A Geotechnical Report (Exhibit 15) prepared by Associated Earth Sciences, Inc. for the site has been provided. Erosion control measures will need to be in place prior to starting grading activities on the site. The report discusses the soil and groundwater characteristics of the site including infiltration potential and provides recommendations for project design and construction. The report discounts the use of infiltration of stormwater due to the low permeability lodgement till soils and perched groundwater layer present on site. Staff recommends, as a condition of approval, that the geotechnical recommendations presented in the report will need to be addressed within the project plans at construction. The frontage improvements must include storm system conveyance improvements that are sized for the total upstream tributary area per the adopted 2009 KCSWDM and City Amendments. Catch basins need to be placed at the upstream end and downstream end of the frontage, at a minimum, and designed to pick up the existing ditch on the upstream end of the frontage improvements. The application is proposing to combine runoff from both on-site Natural Discharge Areas (NDAs) into one detention system which will discharge into the public conveyance system. The proposed discharge location is within one quarter mile of the natural discharge location and meets the requirements of the 2009 KCSWDM. The applicant has demonstrated that the existing critical area to the west of the proposed parcels will maintain its existing hydrology with the new stormwater discharge location. The development is required to provide basic water quality treatment prior to discharge. Project water quality treatment will consist of conveyance to a combined water quality and detention vault prior to connection to the public storm system in 111th Avenue SE. A Surface Water Development Fee of $1,608.00 per new single family residence will apply. The project proposes the addition of 7 new residences (9 new single family homes, 2 existing homes to be removed). The estimated total fee is $11,256.00. This is subject to final design and payable prior to issuance of the utility construction permit based upon the current fee schedule in effect. DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 16 of 18 D_Report_D_Report_Admin_20180112  Water: Water service is provided by Soos Creek Water and Sewer District. A water availability certificate from the District shall be provided to the City for review with the construction permit submittal. A copy of the approval water plan from Soos Creek Water and Sewer District shall be provided to the City prior to approval of the Civil Construction Permit. The number and location of fire hydrants shall be determined by the Renton Fire Authority as part of the review of the project plans. Adequate separation between utilities as well as other features shall be provided in accordance with code requirements.  Sanitary Sewer: Wastewater service is provided by Soos Creek Water and Sewer District. A sewer availability certificate from Soos Creek Water and Sewer District has been provided as part of the Land Use Application. A copy of the approved sewer plan from Soos Creek Water and Sewer District shall be provided to the City prior to approval of the Civil Construction Permit. Adequate separation between utilities as well as other features shall be provided in accordance with code requirements. 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 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 project complies with City Code and conditions of approval, 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 contained herein, see FOF 17. 7. There are safe walking routes to the schools and school bus stops provided the project complies with the conditions of approval, see FOF 18. 8. There are adequate public services and facilities to accommodate the proposed short plat, see FOF 18. J. DECISION: The Bethany Corner Short Plat, File No. LUA16-000958, as depicted in Exhibits 3-8, is approved and is subject to the following conditions: 1. A demolition permit shall be obtained for all existing structures and all required inspections completed prior to the issuance of the Construction Permit. 2. The applicant shall submit a final landscape plan that provides an additional replacement tree to meet the 24 caliper inches required and revise the Replacement Tree Plant Schedule. In addition, two additional street trees shall be provided. A detailed landscape plan, as defined in RMC 4-8-120, shall be submitted at the time of Construction Permit application and shall be reviewed and approved by the Current Planning Project Manager that demonstrates compliance with both tree density and tree retention regulations. DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 17 of 18 D_Report_D_Report_Admin_20180112 3. The applicant shall submit a final landscape plan that provides the storm drain tract with the required 15-foot landscape screen consisting of trees, shrubs, and groundcover around the perimeter of the tract. A detailed landscape plan, as defined in RMC 4-8-120, shall be submitted at the time of Construction Permit application and shall be reviewed and approved by the Current Planning Project Manager prior to construction permit issuance. 4. Landscaping within the public right-of-way and within Tract A shall be installed prior to final short plat approval. Landscaping on the individual lots shall be installed at the time of the construction of the new homes. 5. The applicant shall include the Stream Buffer Enhancement Plan as part of the construction plan submittal to demonstrate that the stream buffer remains forested and is planted with native landscape. The Stream Buffer Enhancement Plan shall provide for additional plant materials, tree protection, and installation of a split rail fence along the buffer’s edge to include sensitive area signage that protects the critical area buffer within a separate tract and avoids any impacts and shall be reviewed and approved by the Current Planning Project Manager prior to construction permit issuance. 6. Any proposal to convert the proposed stormwater vault within the storm drainage tract to a stormwater detention pond shall be considered a Major Plat Amendment subject to the requirements outlined in RMC 4-7-080.M.2. 7. A safe walking route to the schools and bus stop shall be identified with the construction permit application for review and approval by the Current Planning Project Manager prior to construction permit issuance. 8. The following note shall be provided on the face of the final short plat: Lots 6 and 7 shall access from a joint use driveway. No additional curb cuts shall be permitted on Road A. DATE OF DECISION ON LAND USE ACTION: SIGNATURE: Jennifer Henning, Planning Director Date TRANSMITTED this 12th day of January, 2018 to the Owner/Applicant/Contact: Owner: Applicant: Contact: Mary Nguyen 9102 SE 41st Street Mercer Island, WA 98055 Rodney & Stephanie Seek 16451 – 111th Ave SE Renton, WA 98055 Mark Seek 15233 Manion Way NE Duvall, WA 98019 Jonathan Murray, P.E. D.R. Strong Consulting Engineers, Inc. 620 – 7th Avenue Kirkland, WA 98033 TRANSMITTED this 12th day of January, 2018 to the Parties of Record: Ryan Jackman 16442 111th Avenue SE Renton, WA 98055 Connie Morris 16466 111th Avenue SE Renton, WA 98055 DocuSign Envelope ID: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7 1/12/2018 | 12:08 PM PST City of Renton Department of Community & Economic Development Administrative Report & Decision BETHANY CORNER SHORT PLAT LUA16-000958, SHPL-A January 12, 2018 Page 18 of 18 D_Report_D_Report_Admin_20180112 TRANSMITTED this 12th day of January, 2018 to the following: Chip Vincent, CED Administrator Brianne Bannwarth, Development Engineering Manager Amanda Askren, Property Services Vanessa Dolbee, Current Planning Manager 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 January 26, 2018. 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. 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: 9314C059-CC7B-4F04-BF6E-5A1CF1088EB7