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HomeMy WebLinkAboutPRE_StaffComments_230713_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 Chua 2-Lot Short Plat 2705 Benson Rd S PRE23-000210 July 13, 2023 Contact Information: Planner: Andrew Van Gordon, 425.430.7286, avangordon@rentonwa.gov Public Works Plan Reviewer: Huy Huynh, 425.430.7384, hhuynh@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, Development Engineering Director, Department of Community & Economic Development Administrator, Public Works Administrator and City Council). M E M O R A N D U M DATE: June 26, 2023 TO: Andrew Van Gordon, Senior Planner FROM: Corey Thomas, Lead Plans Review Inspector SUBJECT: Chua 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 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. Water is provided by Soos Creek Water District, a water availability certification is required. It appears one existing fire hydrant is directly across the street. 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. No charges apply to the existing house that is to remain. 3. Fire department apparatus access roadways are required to be a minimum of 20-feet wide 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 buildings. The maximum grade is 15 percent. Access on adjoining property shall have all proper access easement recordings. DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: July 7, 2023 TO: Andrew Van Gordon, Planner FROM: Huy Huynh, Civil Engineer SUBJECT: Chua 2-Lots Short Plat 2705 Benson Rd S PRE23-000210 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) 2923059106. The following comments are based on the pre-application submittal made to the City of Renton by the applicant. WATER 1. A water availability certificate from Soos Creek Water and Sewer District is required as part of the land use Application. 2. A copy of the approved Soos Creek Water and Sewer District plans shall be provided to the City prior to civil construction permit approval. Soos Creek Water and Sewer District contact: http://www.sooscreek.com, phone number 253-630-9900. 3. Adequate horizontal and vertical separation between the new water main and other utilities (storm sewer pipes and vaults, sanitary sewer, power, gas, electrical) shall be provided for the operation and maintenance of the City mains. 4. A conceptual utility plan will be required as part of the land use application for the subject development. 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 Benson Rd S (see record drawing S-021703). 3. 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. 4. A conceptual utility plan will be required as part of the land use application for the subject development. 5. 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. The site currently contains one single family residence and there is no on-site stormwater conveyance system. There is an existing 12 inch stormwater main (Facility ID No. 120411) on Benson Rd. S 2. 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 in the 2022 City of Renton Surface Water Manual (2022 RSWDM) to determine what type of drainage review is required for this site. A drainage study complying with the 2022 RSWDM may be required. Based on the City’s flow control map, the site falls within the City’s Flow Control Duration Standard area (Matching Forest Conditions). The site falls within the Black River Basin and Rolling Hill Creek sub-basin. 3. Erosion control measures to meet the City requirements shall be provided. 4. The current City of Renton Surface Water Standard Plans that shall be used in all drainage submittals. The current City of Renton Standard details are available online at 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. The development falls within the R-8 zone which has a maximum impervious surface area of 65% per lot. 9. The development is subject to a surface water system development charge (SDC) fee. Fees will be charged based on the rate at the time of construction permit issuance. a) The current SDC fee for a SFR is $2,300.00 b) The current SDC fee for an ADU is $1,150.00 c) The full schedule can be found at: https://edocs.rentonwa.gov/Documents/DocView.aspx?id=10067870&dbid=1&repo=Cityof Renton. TRANSPORTATION 1. In accordance with RMC 4-6-060, if the site improvements and/or proposed building additions exceed an overall valuation of $175,000, the project site(s) shall be required to meet the City’s Complete Streets Standards. a. Benson Rd S. is classified as a minor arterial street, with an existing right-of-way (ROW) width of approximately 60 feet. To meet the City’s complete street standards for Residential Access streets, a minimum ROW width of 91 feet is required. Per RMC 4-6- 060, half street improvements as taken from the ROW centerline will be required and include a minimum 54-foot paved road (27 feet from centerline), 0.5 feet of curb, an 8- foot planting strip, and 8-foot sidewalk, and 2’ clear at back of sidewalk along each side of the roadway. Approximately 15.5’ dedication would be required depending on final survey. i. However, the adopted Renton Trails and Bicycle Master Plan includes a modified street section for the portion of Benson Rd S. fronting the site. The street section reduces the pavement width to 43 feet (21.5 feet from centerline). The modified street standard requires a minimum ROW of 80 feet. Half street improvements shall include a pavement width of 21.5 feet, a 0.5 foot curb, an 8 foot planting strip a 8 foot sidewalk, a 2 foot clear space at back of walk, street trees and storm drainage improvements. A modification will be required. 2. Undergrounding of all existing and proposed utilities is required on all frontages per RMC 4-6- 090. 3. Refer to City code 4-4-080 regarding driveway regulations. a. A minimum separation of 5 feet is required between driveway and the property line. b. Maximum driveway slopes shall not exceed 15%. Driveways exceeding 8% shall provide slotted drains. c. 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. Instead of an access easement, 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. 5. 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. 6. Paving and trench restoration within the City of Renton right of way shall comply with the City’s Restoration and Overlay requirements. 7. The development is subject to transportation impact fees. Fees will be charged based on the rate at the time of building permit issuance. a. The 2023 transportation impact fee is $12,208.54 per single family home and for an ADU, the 2023 transportation impact fee is $7,550.02. b. 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. All existing and proposed utility lines (i.e., electrical, phone, and cable services, etc.) along property frontage or within the site must be underground. The construction of these franchise utilities must be inspected and approved by a City of Renton inspector. 2. 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 civil construction permits for utility and street improvements will require separate plan submittals. All utility plans shall confirm to the Renton Drafting Standards. A licensed Civil Engineer shall prepare the civil plans. Please visit the Development Engineering Forms page for the most up-to-date plan submittal requirements: http://rentonwa.gov/business/default.aspx?id=42473 4. A landscaping plan and tree retention shall be included with the civil plan submittal. Each plan shall be on separate sheets. 5. Additional Building Permit Applications will be required for the following: a. Any retaining walls that exceed 4 feet in height, as defined by RMC 4-4-040. b. Detention vaults for storm water flow control. c. Demo of any existing structures on the project site(s). 6. 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 fee schedule. 7. A demo permit is required for the demolition of the existing building. The demo permit shall be acquired through the building department. DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: July 13, 2023 TO: Pre-Application File No. 23-000210 FROM: Andrew Van Gordon, Associate Planner SUBJECT: Chua 2-Lot Short Plat – 2705 Benson Rd S (Parcel number 2923059106) 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 2705 Benson Rd S (APN 2923059106) into two (2) residential lots for the benefit of detached dwellings; an Accessory Dwelling Unit (ADU) is proposed on one (1) lot. The property has street frontage along Benson Rd S to the east. The lot is located within the Residential – 8 (R-8) zone. The site area is approximately 14,810 square feet (0.33 acre). Access to the front lot is proposed via the existing driveway from Benson Rd S; access to the back lot is proposed via an access easement from Benson Rd S. Current Use: The project area is currently developed with a detached dwelling with access from Benson Rd S. The existing dwelling is proposed to be retained on the front lot. Per COR Maps a moderate coalmine hazard, high landslide hazard area, sensitive slopes and protected slopes are present on the site. 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 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. Detached dwellings are permitted within the R-8 zone. Chua 2-Lot Short Plat Page 2 of 8 July 13, 2023 Density: The area of public rights-of-way, legally recorded private access easements 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, Class 1 to 4 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 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 four (4) dwelling units per acre with a maximum of eight (8) dwelling units per acre. Based on the approximate gross land area of 0.3399 acre, the two (2) lot proposal arrives at a gross density of approximately 5.88 du/ac (2 lots / 0.3399 gross acres = 5.88 du/ac). The gross density would result in 5.88 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’); minimum lot depth is 80 feet (80’). 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. It is unclear from the provided documents what the lot width and depth of each proposed lot is. Based on measurements made in COR Maps two (2) lots could be placed side-by-side with frontage along Benson Rd S and still meet width, depth, and area requirements for the R-8 zone. Prior to Planning supporting a front/back lot configuration, it would need to be shown that a side-by-side layout is not possible. Compliance with minimum lot size, width and depth standards would be verified at the time of land use application. 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 65 percent (65%). 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 Chua 2-Lot Short Plat Page 3 of 8 July 13, 2023 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. One (1) ADU is permitted per legal lot. Unit size shall be determined by lot size and the size of the primary structure; the total gross floor area of the ADU shall not exceed the size stated in the Maximum Unit Size section of this table or 75% of the total gross floor area of the primary structure, whichever is smaller. ADUs shall be located at least 6 feet (6’) from any residential structure. ADUs are subject to the maximum wall plate height of RMC 4-2-110A, and associated conditions and shall not be taller than the primary structure. Additional ADU height allowances may be permitted upon application and approval of a modification pursuant to RMC 4-9-250. 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. Existing development proposed for retention would also be required to comply with building and coverage limitations and would be reviewed for compliance at the time of land use application. 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: 20 feet (20’) except when all vehicle access is taken from an alley, then 15 feet (15’); Secondary front yard (applies to corner lots): 15 feet (15’); Rear yard: 25 feet (25’); Side yard: five feet (5’) 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- 120D.1, 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. The required setbacks for ADUs within the R-8 zone are: Front yard: The ADU shall be set back an additional 5 ft. parallel to and measured from the front facade of the primary structure and shall comply with the setbacks applied to the primary structure, as identified in RMC 4-2-110A, Development Standards for Residential Zoning Designations. ADUs shall not be permitted between the primary structure and the street unless approved in the Conditional Use Permit process; Rear yard: five feet (5’), when located within 10 feet (10’) of the rear property line, at least 25 percent (25%) of the lineal length of the rear yard shall remain unoccupied from accessory dwellings, except when the rear property line abuts an alley; Side yard: five feet (5’). In no case shall a structure over 42 inches in height intrude into the 20 foot clear vision area defined in RMC 4-11-030. 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, Chua 2-Lot Short Plat Page 4 of 8 July 13, 2023 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 the front lot is proposed via the existing access from Benson Rd S. Access to the rear lot is proposed via an access easement from Benson Rd S. 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 4-4-080I.9, Joint Use Driveways. Shared driveways may be allowed for access to four (4) or fewer residential lots provided: 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. An access easement alone is not a permitted access mechanism. A joint-use driveway would be required for a side-by-side lot layout. In the current configuration a shared driveway a minimum of 16 feet (16’) in width with an eight-foot (8’) wide landscaping strip would be required along the northern property line; the Fire Department may require the trace and paved surface to be up to 20 feet (20’) wide. All lots shall access off the shared driveway. The project layout would Chua 2-Lot Short Plat Page 5 of 8 July 13, 2023 need to be revised to comply with the shared driveway standards. Compliance with access and driveway requirements would be verified at the time of land use application. 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. 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 Chua 2-Lot Short Plat Page 6 of 8 July 13, 2023 TREE SIZE TREE CREDITS 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 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- 130H.2. 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- 130H.1.e can be met. Chua 2-Lot Short Plat Page 7 of 8 July 13, 2023 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. Hillside Subdivisions: Because of their steeper slopes, the sites of hillside subdivisions ordinarily should have greater attention paid to the potential for drainage, erosion, and slope stability problems than other subdivisions. Information concerning the soils, geology, drainage patterns, and vegetation 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 that the development of the hillside subdivision will not result in soil erosion and sedimentation, landslide, slippage, excess surface water runoff, increased costs of building and maintaining roads and public facilities and increased need for emergency relief and rescue operations. Detailed plans for any proposed cut and fill operations shall be submitted. These plans shall include the angle of slope, contours, compaction, and retaining walls. Plans shall be consistent with requirements in RMC 4- 4-060, Grading, Excavation and Mining Regulations. Areas of the subdivision deemed to be critical areas due to designation as protected slopes shall be located within a tract or tracts. See RMC 4- 7-220, Hillside Subdivisions for full requirements. Critical Areas: Per COR Maps a moderate coalmine hazard, high landslide hazard area, sensitive slopes and protected slopes are present on the site. A geotechnical report would be required at the time of the land use application. Environmental Review: Short Plats are generally exempt from State Environmental Policy Act (SEPA) review. However, the proposal would require environmental review pursuant to RMC 4-9- 070, Environmental Review Procedures. The project site has protected slopes located on it; WAC 197-11-800(3) does not apply. An Environmental Checklist must be submitted with the proposal and the City’s Environmental Review Committee is required to issue a Threshold Determination prior to any issuance for permits on the site. Permit Requirements: The proposal would require administrative short plat approval and Environmental Review. The application would be reviewed within an estimated time frame of eight weeks. The 2023 fees would total $8,274.00 ($6,080.00 Preliminary Short Plat + $1,800.00 Environmental Review + $394.00 Technology Fee (5%) = $8,274.00). 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 Chua 2-Lot Short Plat Page 8 of 8 July 13, 2023 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 Andrew Van Gordon, Associate Planner at avangordon@rentonwa.gov or (425) 430-7286 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.