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HomeMy WebLinkAboutPRE_Preapplication_Meeting_Summary_240301_v1DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Planning Division | 1055 South Grady Way, 6th Floor | Renton, WA 98057 | 425-430-7200 |www.rentonwa.gov PREAPPLICATION MEETING FOR Sophie Jo Short Plat APN 7222000110 PRE23-000144 June 1, 2023 Contact Information: Planner: Brianna Burroughs, 425.430.7246, bburroughs@rentonwa.gov Public Works Plan Reviewer: Sam Morman, 425-430-7383, smorman@rentonwa.gov Fire Prevention Reviewer: Corey Thomas, 425.276.9582, cthomas@RentonRFA.org Building Department Reviewer: Rob Shuey, 206.550.8523, rshuey@rentonwa.gov Please retain this packet throughout the course of your project as a reference. Consider giving copies of it to any engineers, architects, and contractors who work on the project. You will need to submit a copy of this packet when you apply for land use and/or environmental permits. Pre-screening: When you have the project application ready for submittal, call and schedule an appointment with the project manager to have it pre-screened before making all of the required copies. The pre-application meeting is informal and non-binding. The comments provided on the proposal are based on the codes and policies in effect at the time of review. The applicant is cautioned that the development regulations are regularly amended and the proposal will be formally reviewed under the regulations in effect at the time of project submittal. The information contained in this summary is subject to modification and/or concurrence by official decision-makers (e.g., Hearing Examiner, Planning Director, Development Services Director, Department of Community & Economic Development Administrator, Public Works Administrator and City Council). DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: June 1, 2023 TO: Pre-Application File No. 23-000144 FROM: Brianna Burroughs, Associate Planner SUBJECT: Sophie Jo Short Plat – (Parcel number 7222000110) General: We have completed a preliminary review of the pre-application for the above- referenced development proposal. The following comments on development and permitting issues are based on the pre-application submittals made to the City of Renton by the applicant and the codes in effect on the date of review. The applicant is cautioned that information contained in this summary may be subject to modification and/or concurrence by official decision- makers (e.g., Hearing Examiner, Community & Economic Development Administrator, Public Works Administrator, Planning Director, and City Council). Review comments may also need to be revised based on site planning and other design changes required by City staff or made by the applicant. The applicant is encouraged to review all applicable sections of the Renton Municipal Code. The Development Regulations are available online at https://www.codepublishing.com/WA/Renton/. Project Proposal: The applicant proposes to subdivide (APN 7222000110) into three (3) residential lots for the benefit of detached dwellings. The property has street frontage along Smithers Ave S to the west and S 21st ST to the North. The lot is located within the Residential – 8 (R-8) zone. The site area is approximately 20,010 square feet (0.46 acre). Access to Lot 1 is proposed through a new driveway from Smithers Ave S; access to Lots 2 and 3 is proposed through a shared driveway tract off S 21st ST. Current Use: The site area is currently undeveloped. Zoning/Land Use: The subject property is located within the Residential-8 (R-8) zoning classification. The Residential Medium Density Land Use designation is intended to implement the R-8 zone. The R-8 zone is established for single family dwellings. Development in the R-8 zone is intended to be single family residential at moderate density. Detached dwellings are permitted within the R-8 zone. Density: The area of public rights-of-way, shared driveway tracts and critical areas (i.e. very high landslide hazard areas, protected slopes (except evaluate on a case-by-case basis those protected slopes created by previous development, wetlands, streams and lakes or floodways) would be deducted from the gross site area to determine the “net” site area prior to calculating density. In order to calculate the proposed density of the project, any area of public road, private driveway/easement, and/or critical area dedication must be known. All fractions which result from net density calculations shall be truncated at two (2) numbers past the decimal (e.g., 4.5678 becomes 4.56). Calculations for minimum or maximum density that result in a fraction that is 0.50 Yang Development Page 2 of 7 May 31, 2023 or greater shall be rounded up to the nearest whole number. Those density calculations resulting in a fraction that is less than 0.50 shall be rounded down to the nearest whole number. The R-8 zone has a minimum density of three (4) dwelling units per acre with a maximum of six (8) dwelling units per acre. Based on the approximate gross land area of 0.4593 acre, the three (3) lot proposal arrives at a gross density of approximately 6.53 du/ac (3 lots / 0.4593 gross acres = 6.53 du/ac). The gross density would result in 6.53 du/ac; however, the applicant would be required to demonstrate compliance with the net density requirements of the zone at the time of formal application. A density worksheet deducting street improvements identified in the preapplication meeting and this memo would be required with the land use application. Development Standards: The project would be subject to RMC 4-2-110A, Development Standards for Residential Zoning Designations effective at the time of complete application (noted as “R-8 standards” herein). Minimum Lot Size, Width and Depth – The minimum lot size permitted in the R-8 zone is 5,000 square feet for parcels being subdivided. For short plats of parcels smaller than one (1) acre, one (1) parcel may be allowed to be smaller than the required minimum lot size. If all other parcels meet the required minimum lot size standard of the zone, one parcel may be allowed to be 4,500 square feet in size in the R-8 zone. Minimum lot width is 50 feet (50’), and sixty feet (60’) for corner lots; minimum lot depth is 80 feet (80’). A corner lot is a A lot abutting upon any combination of two (2) or more streets, including private streets (e.g., unit lot drives), or shared driveways, but excluding alleys, at their intersection, or upon two (2) parts of the same street, such streets or parts of the same street forming an interior angle of less than one hundred thirty five degrees (135°) within the lot lines. In order to ensure compliance with Tier 1 requirements for Tree Preservation Priority, pursuant to RMC 4-4-130H2a, lot size and lot dimensions of the zone may be decreased by a maximum of 10 percent (10%), provided the applicant can demonstrate to the Administrator’s satisfaction that the reduction is necessary to ensure the preservation of all significant trees, as defined in RMC 4-11-200, required for retention within dedicated tract(s), pursuant to RMC 4-4-130H1a, Minimum Tree Retention Requirements. As shown in the proposed site plan, all three (3) lots would be considered corner lots with Lot 1 frontages along Smithers Ave S and S 21st St and Lots 2 and 3 with frontage along S 21st St and the proposed shared driveway. . Building Standards – The R-8 standards allow a maximum building coverage of 50 percent (50%) of the lot area. The maximum impervious coverage in the R-8 zone is 70 percent (70%). The maximum wall plate height is restricted to 24 feet (24’), and the buildings shall be not more than two (2) stories. 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; common rooftop features, such as chimneys, may project an additional four vertical feet (4’) from the roof surface. Non-exempt vertical projections (e.g., decks, railings, etc.) shall not extend above the maximum wall plate height unless the projection is stepped back one-and-a-half horizontal feet (1.5’) from each façade for each one vertical foot (1’) above the maximum wall plate height. The maximum wall plate height for detached accessory structures is 12 feet (12’) and the total floor area must be less than that of the primary structure. Accessory structures are also included in building lot coverage calculations. Yang Development Page 3 of 7 May 31, 2023 New development would need to comply with the maximum building coverage, impervious surface requirements, and building height regulations of the zone at the time of building permit review. Setbacks – Setbacks are the minimum required distance between the building footprint and the property line. The required setbacks for the R-8 zone are: Front yard twenty feet (20’) and secondary front yard: fifteen feet (15’) Rear yard: twenty-five feet (25’); Side yards: 5 feet (5’) on either side. Corner lots required to have a front yard and a secondary front yard are relieved of the requirement to have a rear yard; in place of a rear yard setback, the side yard setback of the zone shall apply. For through lots, corner lots, and lots without street frontage, the front yard will be determined by the Planning Division Director. Within subdivisions, the minimum front yard and secondary front yard setback may be reduced to no less than twenty feet (20') provided the applicant can demonstrate to the Administrator’s satisfaction that the setback reduction is necessary to preserve and maintain a landmark tree within a tree protection tract, as each term is defined in RMC 4-11-200, Definitions T. An arborist report, pursuant to RMC 4-8-120D1, shall be prepared and provided to the City for review and concurrence, demonstrating that the setback reduction and project proposal serve to preserve the critical root zone of the tree within a tree protection tract. Compliance with required setbacks for new development would be verified at the time of building permit application. Existing development proposed for retention would be reviewed for compliance at the time of land use application. Residential Design and Open Space Standards Future single-family building permits would be subject to the RMC 4-2-115, Residential Design and Open Space Standards. Requirements related to garages, entries, modulation, windows/doors, scale, bulk, and character, roof forms, eaves, architectural detailing, and materials/color should be reviewed in their entity prior to submitting permit applications. Compliance with lot configuration requirements would be verified at the time of land use application. Compliance with building design requirements would be verified at the time of building permit review. Access/Parking: Access to Lot 1 is proposed through a new driveway off Smithers Ave S; access to Lots 2 and 3 is proposed through a shared driveway tract off S 21st ST. Each lot is required to accommodate off street parking for a minimum of two (2) vehicles. The maximum width of single loaded garage driveways shall not exceed nine feet (9’) and double loaded garage driveways shall not exceed 16 feet. Maximum driveway slopes shall not exceed 15 percent; 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. Driveways shall not be closer than five feet (5’) to any property line except as allowed per RMC 4-4-080I9, Joint Use Driveways. Alley access is the preferred street pattern for all new residential development except in the Residential Low Density land use designation (RC, R-1, and R-4 zones) and the R-6 zone. All new residential development in an area that has existing alleys shall utilize alley access. New residential development in areas without existing alleys shall utilize alley access for interior lots. If the developer or property owner demonstrates that alley access is not practical, the use of alleys may not be required. Shared driveways may be allowed for access to four (4) or fewer residential lots provided: Yang Development Page 4 of 7 May 31, 2023 a. At least one (1) of the four (4) lots abuts a public right-of-way and the street frontage of the lot is equal to or greater than the lot width requirement of the zone; b. The subject lots are not created by a subdivision of 10 or more lots; c. A public street is not anticipated by the City of Renton to be necessary for existing or future traffic and/or pedestrian circulation through the short subdivision or to serve adjacent property. d. The shared driveway would not adversely affect future circulation to neighboring properties; e. The shared driveway is no more than 300 feet (300’) in length; and f. The shared driveway poses no safety risk and provides sufficient access for emergency vehicles and personnel. Shared driveways shall be within a tract; the width of the tract and paved surface shall be a minimum of 16 feet (16’) in width; the Fire Department may require the tract and paved surface to be up to 20 feet (20’) wide. If a shared driveway abuts properties that are not part of the subdivision, an eight-foot (8’) wide landscaped strip shall be provided between the shared driveway and neighboring properties. The landscape strip shall be within a tract and planted with a mixture of trees, shrubs and groundcover, as required in RMC 4-4-070. The shared driveway may be required to include a turnaround per subsection H of RMC 4-6-060, Street Standards. No sidewalks are required for shared driveways; however, drainage improvements pursuant to City Code are required as well as an approved pavement thickness. The maximum grade for the shared driveway shall not exceed 15 percent (15%), except for within approved hillside subdivisions. The project layout would need to comply with the shared driveway standards. Compliance with access requirements would be verified at the time of land use application. Compliance with driveway requirements would be verified at the time of building permit review. Landscaping: With the exception of critical areas, all portions of the development area not covered by structures, required parking, access, circulation or service areas, must be landscaped with native, drought-resistant vegetative cover. The minimum on-site landscape width required along street frontages is 10 feet and shall contain trees, shrubs, and landscaping. Street trees in the ROW planter will also be required. Landscaping may include hardscape such as decorative paving, rock outcroppings, fountains, plant containers, etc. Minimum planting strip widths between the curb and sidewalk are established according to the street development standards of RMC 4-6-060, Street Standards. Street trees and, at a minimum, groundcover are to be located in this area when present. Street trees shall be planted in the center of the planting strip between the curb and the sidewalk at the following intervals; provided, that, where right-of-way is constrained, irregular intervals and slight increases or decreases may be permitted or required. Additionally, trees shall be planted in locations that meet required spacing distances from facilities located in the right-of-way including, but not limited to, underground utilities, streetlights, utility poles, traffic signs, fire hydrants, and driveways; such spacing standards are identified in the City’s Approved Tree List. Generally, the following spacing is required: i. Small- sized maturing trees: thirty feet (30') on center; ii. Medium-sized maturing trees: forty feet (40') on center; and iii. Large-sized maturing trees: fifty feet (50') on center. Yang Development Page 5 of 7 May 31, 2023 A conceptual landscape plan shall be provided with the land use application as prepared by a licensed Landscape Architect, a certified nurseryman or other certified professional. Please be aware that frontage improvements will be required. Storm drainage facilities are required to comply with the minimum 15-foot perimeter landscaping strip on the outside of the fence unless otherwise determined through the site plan review or subdivision review process. Please refer to landscape regulations RMC 4-4-070 for further general and specific landscape requirements. Significant Tree Retention: A review of COR Maps appears to show that there are mature trees on the site. When significant trees (greater than 6-inch caliper or 8-caliper inches for alders and cottonwoods) are proposed to be removed, a tree inventory and a tree retention plan along with an arborist report, tree retention plan and tree retention worksheet shall be provided with the formal land use application as defined in RMC 4-8-120. The tree retention plan must show preservation of at least 30% of significant trees. Please refer to RMC 4-4-130, Tree Retention and Land Clearing Regulations for further general and specific tree retention and land clearing requirements. In addition to retaining a minimum of 30% of existing significant trees, each new lot would be required to provide a minimum tree density of 30 tree credits per net acre. Tree credits encourage retention of existing significant trees with larger trees being worth more tree credits. TREE SIZE TREE CREDITS New small species tree 0.25 New medium species tree 1 New large species tree 2 Preserved tree 6 – 9 caliper inches 4 Preserved tree 10 – 12 caliper inches 5 Preserved tree 12 – 15 caliper inches 6 Preserved tree 16 – 18 caliper inches 7 Preserved tree 19 – 21 caliper inches 8 Preserved tree 22 – 24 caliper inches 9 Preserved tree 25 – 28 caliper inches 10 Preserved tree 29 – 32 caliper inches 11 Preserved tree 33 – 36 caliper inches 12 Yang Development Page 6 of 7 May 31, 2023 TREE SIZE TREE CREDITS Preserved tree 37 caliper inches and greater 13 Protected trees within a subdivision shall be retained in the order of priority listed in RMC 4 -4- 130H2. Protection of trees or groves by placement within a dedicated tract (Tier 1) is the highest priority. 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; significant trees over sixty feet (60') in height or greater than eighteen inches (18") caliper; and trees that shelter interior trees or trees on abutting properties from strong winds, which could otherwise allow such sheltered trees to be blown down if removed. 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. The Administrator may require independent review of any land use application that involves tree removal and land clearing at the City's discretion. The Administrator may authorize the planting of replacement trees on the site if it can be demonstrated to the Administrator's satisfaction that replacement requirements in RMC 4-4- 130H1e can be met. Tree retention standards shall be applied to the developable area, as defined in RMC 4-11-040, Definitions D, of a property. A formal tree retention plan and tree retention worksheet prepared by an arborist or landscape architect would be reviewed at the time of the land use application. Fences/Walls: If the applicant intends to install any fences or retaining walls as part of this project, the location must be designated on the landscape plan and grading plan with top of wall and bottom of wall elevations. A fence and/or wall detail should also be included on the plan. A retaining wall that is 4 feet or taller, as measured by the vertical distance from the bottom of the footing to the finish grade at the top of the wall requires a building permit. The maximum height of any fence or retaining wall is 72-inches subject to further height limitations in setbacks and clear vision areas noted in RMC 4-4-040D. A fence shall not be constructed on top of a retaining wall unless the total combined height of the retaining wall and the fence does not exceed the allowed height of a standalone fence. For more information about fences and retaining walls refer to RMC 4-4-040. Critical Areas: According to COR Maps, there are no critical areas or their buffers on the property or within an applicable distance. It is the applicant’s responsibility to determine if designated critical areas or their buffers are located on the property. Yang Development Page 7 of 7 May 31, 2023 Environmental Review: Short Plats are generally exempt from State Environmental Policy Act (SEPA) review. However, the project may be subject to Environmental Review, in accordance with RMC 4-9-070 H.3., if it is determined that designated critical areas or their buffers are located on the property. Permit Requirements: The proposal would require administrative short plat approval. The application would be reviewed within an estimated time frame of six to eight weeks. The 2023 fees would total $6,384.00 ($6,080.00 Preliminary Short Plat + $304.00 Technology Fee (5%) = $6,080.00). Each modification request is $290.00. A 5% technology fee added to the total cost of the reviews would also be assessed at the time of land use application. All fees are subject to change. Detailed information regarding the land use permit application submittal requirements can be found on the Short Plat Submittal Requirements checklist. Other informational applications and handouts can be found on the City’s Digital Records Library. The City requires electronic plan submittal for all applications. Please refer to the City’s Electronic File Standards. A Final Short Plat application, and its associated fee, will be required following construction of the subdivision’s infrastructure. Public Information Sign: Public Information Signs are required for all Type II Land Use Permits as classified by RMC 4-8-080, Permit Classification. Public Information Signs are intended to inform the public of potential land development, specific permits/actions being considered by the City, and to facilitate timely and effective public participation in the review process. The applicant must follow the specifications provided in the public information sign handout. The applicant is solely responsible for the construction, installation, maintenance, removal, and any costs associated with the sign. Fees: In addition to the applicable building and construction fees, impact fees would be required. The fee in effect at the time of residential building permit issuance will apply. For informational purposes, the 2023 impact fees are as follows: • A Transportation Impact Fee assessed at $12,208.54 per each new detached dwelling unit. • A Parks Impact Fee assessed at $3,276.44 per each new detached dwelling unit subdivision. • A Fire Impact Fee assessed at $829.77 per each new detached dwelling unit. • A Renton School District Impact Fee assessed at $2,911.00 (plus a 5% processing charge) per each new detached dwelling unit. A handout listing Renton’s development-related fees is available on the City of Renton website for your review. Next Steps: When the formal land use application materials are complete, the applicant shall have the application materials pre-screened prior to submitting the complete application package. Please contact Brianna Burroughs, Associate Planner at bburroughs@rentonwa.gov or (425) 430- 7246 for an appointment. Expiration: Upon approval, the Short Plat is valid for five years with a possible one-year extension (RMC 4-7-070M). It is the responsibility of the owner to monitor the expiration date. DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: June 1, 2023 TO: Brianna Burroughs, Planner FROM: Sam Morman, Civil Engineer SUBJECT: Sophie Jo Short Plat 21XX S 21st St PRE23-000144 NOTE: The applicant is cautioned that information contained in this summary is preliminary and non- binding and may be subject to modification and/or concurrence by official City decision-makers. Review comments may also need to be revised based on site planning and other design changes required by City staff or made by the applicant. I have completed a preliminary review for the above-referenced proposal located at parcel(s) 7222000110. The following comments are based on the pre-application submittal made to the City of Renton by the applicant. Water 1. The project is within the City of Renton’s water service area in the West Talbot Hill 350 Pressure Zone. 2. The static water pressure is approximately 62 psi at ground elevation of 206 feet. 3. There is an existing dead-end 8-inch water main located on the north side of S 21st St that can deliver a maximum flow capacity of 1,250 GPM (see water plan No. W-052605, W-212609). 4. There is an existing water main located on the east side of Smithers Ave S that transitions from 6-inch to 8-inch when abutting the site, and can deliver a maximum flow capacity of 1,000 GPM (see water plan No. W-212609). 5. There are 2 existing hydrants within 300 feet of the property that are connected to dead-end 8-inch water mains with a total maximum flow rate of 1,250 GPM. 6. Based on the review of project information submitted for the pre-application meeting, Renton Regional Fire Authority has determined that the preliminary fire flow demand for single-family homes 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. 7. In the case that dwellings exceed 3,600 square feet, the dwellings will need to either have approved residential fire sprinklers or will need to improve an existing water main to provide a minimum fire flow of 1,500 GPM. 8. Installation of a separate water service (minimum 1-inch) and meter for each new single-family residence is required. The sizing of the meter shall be in accordance with the most recent edition of the Uniform Plumbing Code. Installation of the service and water meter shall be done by City forces, a separate water permit is required. 9. Installation of a landscape irrigation meter with a backflow prevention assembly (DCVA) is required if applicable. 10. A conceptual utility plan will be required as part of the land use application for the subject development. 11. The development is subject to applicable water system development charges (SDC’s) and meter installation fees based on the number and size of the meters for domestic uses and for fire sprinkler use. The development is also subject to fees for water connections, cut and caps, and purity tests. Current fees can be found in the 2023 Development Fees Document on the City’s website. Fees will be charged based on the rate at the time of construction permit issuance. • The SDC fee for water is based on the size of the new domestic water to serve t he project. The current water fee is $4,850.00 per 1-inch meter. • Water service installation charges for each proposed domestic water service is applicable. Water Service installation is $2,875.00 per 1-inch service line, • Drop-in meter fee is $400 per ¾-inch meter and $460.00 per 1-inch meter. • The full fee schedule can be found at: https://edocs.rentonwa.gov/Documents/DocView.aspx?id=10067864&dbid=1&repo=Cityof Renton Sanitary Sewer 1. The project is within the City of Renton’s sanitary sewer service area. 2. There is an 8-inch gravity wastewater main located in S 21st St (see record drawing S-325805). 3. These is an 8-inch gravity wastewater main located in Smithers Ave S (see record drawing S-039903). 4. There is one existing 6” PVC sewer stub serving the western portion of the site. This stub connects to the main in Smithers Ave S. Sewer stub may be reused if it meets the needs of the property. 5. Individual sewer stubs from a sewer main and individual side sewers are required for each lot. All new sewer stubs shall conform to the standards in RMC 4-6-040 and City of Renton Standard Details. 6. A conceptual utility plan will be required as part of the land use application for the subject development. 7. The development is subject to a wastewater system development charge (SDC) fee. SDC fee for sewer is based on the size of the new domestic water to serve the project. Current fees can be found in the 2023 Development Fees Document on the City’s website. Fees will be charged based on the rate at the time of construction permit issuance. • The current sewer SDC fee is $3,650.00 per 1-inch meter. • Final determination of applicable fees will be made after the water meter size has been determined. • The full fee schedule can be found at: https://edocs.rentonwa.gov/Documents/DocView.aspx?id=10067864&dbid=1&repo=Cityof Renton Surface Water 1. There is an existing stormwater ditch that occupies a majority of the property frontage (see record drawing R-204802). 2. Any new on or off-site drainage systems must be designed in accordance with Chapter 4 of the 2022 RSWDM. 3. Drainage plans and a drainage report complying with the adopted 2022 Renton Surface Water Design Manual will be required. Refer to Figure 1.1.2.A – Flow Chart of the 2022 Renton Surface Water Design Manual (RSWDM) to determine what type of drainage review is required for this site. The site falls within the Flow Control Duration Standard Matching Forested Site Conditions. The site falls within the Black River drainage basin and Rolling Hills Creek sub basin. 4. The current Surface Water Standard Plans shall be used in all drainage plan submittals. The current City of Renton Standard Details are available online in the City of Renton website https://edocs.rentonwa.gov/Documents/Browse.aspx?id=990403&dbid=0&repo=CityofRenton 5. If the new plus replaced pollution generating impervious surface exceeds 5,000 SF, the applicant will be required to provide basic water quality treatment. Any proposed detention and/or water quality vault shall be designed in accordance with the RSWDM that is current 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 the detention and/or water quality vault. 6. Appropriate on-site BMPs satisfying Core Requirement #9 will be required to help mitigate the new runoff created by this development to the maximum extent feasible. On-site BMPs shall be evaluated as described in Section C.1.3 of the 2022 RSWDM. A preliminary drainage plan, including the application of on-site BMPs, shall be included with the land use application, as applicable to the project. The final drainage plan and drainage report must be submitted with the utility construction permit application. 7. A geotechnical soils report for the site is required per the 2022 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. 8. Erosion control measures to meet the City requirements shall be provided. 9. The development falls within the R-8 zone which has a maximum impervious surface area of 65% per lot, and maximum building coverage of 50% per lot. 10. The development is subject to a surface water system development charge (SDC) fees. Fees will be charged based on the rate at the time of construction permit issuance. • The current SDC fee for a single family residence is $2,300 per lot. • The full fee schedule can be found at: https://edocs.rentonwa.gov/Documents/DocView.aspx?id=10067864&dbid=1&repo=Cityof Renton Transportation 1. Per City code 4-6-060 frontage improvements are required for new construction in excess of $175,000. The proposed project fronts S 21st St to the north, Smithers Ave S to the west, and private property on the other sides. • S 21st St is classified as a Neighborhood Collector Arterial street. Existing ROW width is 80 feet per the King County Assessors Map. Existing improvements include a paved roadway ranging from approximately 39-44 feet, with the remainder unimproved. To meet the City’s complete street standards for Neighborhood Collector Arterial streets, minimum ROW is 83 feet. Per City code 4-6-060, minimum half street improvements shall include a paved roadway width of 30 feet (15 feet from centerline), with a paved 8 foot parking lane, a 0.5 foot curb, an 8 foot planting strip, an 8 foot sidewalk, street trees and storm drainage improvements. Dedication of approximately 1.5 feet is required pending final survey. • Smithers Ave S is classified as a Residential Access street. Existing ROW width is 30 feet per the King County Assessors Map. Existing improvements include a paved roadway of approximately 18 feet (9 feet from centerline) with the remainder unimproved. To meet the City’s complete street standards for Residential Access streets, minimum ROW is 53 feet. Per City code 4-6-060, minimum half street improvements 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. Dedication of approximately 11.5 feet is required pending final survey. 2. A bus station is located along the site frontage on S 21st St. Coordinate with King County Metro to maintain bus service as required. 3. Refer to City code 4-4-080 regarding driveway regulations. • A minimum separation of 5 feet is required between driveway and the property line. • Maximum driveway slopes shall not exceed 15%. Driveways exceeding 8% shall provide slotted drains. • The maximum width of single loaded garage driveway shall not exceed nine feet (9') and double-loaded garage driveway shall not exceed sixteen feet (16'). 4. Joint use driveways are allowed for access up to 2 lots provided that each lot abuts a public right-of- way. Refer to the shared driveway requirements as outlined in RMC 4-4-080I. Joint use access to the driveway shall be assured by easement or other legal form acceptable to the City. 5. A shared driveway is allowed for access up to 4 lots provided at least one of the four lots abuts a public right-of-way with at least fifty linear feet of frontage and the subject lots are not created by a subdivision of ten or more lots. Refer to the shared driveway requirements as outlined in RMC 4-6- 060.J. Shared driveways shall be within a tract; the width of the tract and paved surface shall be a minimum of sixteen feet; the Fire Authority may require the tract and paved surface to be up to twenty feet wide. If a shared driveway abuts properties that are not part of the subdivision an eight foot wide landscaped strip shall be provided between the shared driveway and neighboring properties. 6. Undergrounding of all existing utilities is required on all frontages per RMC 4-6-090. 7. Street lighting is not required for a project that consists of 4 or less residential units. See RMC 4-6-060 for street lighting requirements. 8. Paving and trench restoration within the City of Renton right of way shall comply with the City’s Trench Restoration and Street Overlay Requirements. 9. The development is subject to transportation impact fees. Fees will be charged based on the rate at the time of building permit issuance. • The 2023 transportation impact fee is $12,208.54 per single family home. • The full fee schedule can be found at: https://edocs.rentonwa.gov/Documents/DocView.aspx?id=10067864&dbid=1&repo=Cityof Renton General Comments 1. If frontage improvements are required, all existing and proposed utility lines (i.e. electrical, phone, and cable services, etc.) along property frontage or within the site must be underground as outlined in RMC 4-6-090 – UTILITY LINES - UNDERGROUND INSTALLATION. The construction of these franchise utilities must be inspected and approved by a City of Renton inspector. 2. 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. 3. All construction utility 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 4. A landscaping plan shall be included with the civil plan submittal. Each plan shall be on separate sheets. 5. Fees quoted in this document reflect the fees applicable in the year 2023 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. M E M O R A N D U M DATE: May 22, 2023 TO: Briannan Burroughs, Senior Planner FROM: Corey Thomas, Lead Plans Review Inspector SUBJECT: Sophie Jo Short Plat 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 fire hydrant is required within 300-feet of the proposed buildings and two hydrants if the fire flow goes up to 1,500 gpm. It appears that the minimum fire flow and fire hydrants are existing. 2. The fire impact fees are currently applicable at the rate of $829.77 per single family unit. This fee is paid at building permit issuance. 3. Fire department apparatus access roadways are adequate from the existing public street system.