23.47A.009

A. Resolution of standards conflicts. To the extent there is a conflict between this Section 23.47A.009 and other sections of Title 23 , the provisions of this Section 23.47A.009 apply. B. West Seattle Junction Urban Center. The following provisions apply to development in the NC3-95 zone located between SW Alaska Street, SW Edmunds Street, Fauntleroy Way SW, and 40th Avenue SW: 1. Lot coverage limit. The maximum lot coverage permitted for principal and accessory structures shall not exceed 80 percent on lots 40,000 square feet in size or greater. 2. The total permitted FAR is as identified in Section 23.47A.013 . 3. Maximum width of structures. The maximum width of all portions of a structure measured parallel to a north-south street lot line is 275 feet. 4. Setback and separation requirements a. The following standards apply to structures greater than 250 feet in width measured parallel to a north-south street lot line: 1) A minimum separation of 30 feet is required between structures that are adjacent to the same north-south street lot line; and 2) A minimum setback of 15 feet is required from side lot lines that are not street side lot lines and that separate lots that abut the same north-south street lot line; and 3) Structures permitted in required setback and separation areas pursuant to this subsection 23.47A.009.B.4.a and subsection 23.47A.009.B.4.b are subject to subsection 23.47A.014.G. In addition: a) Decks with open railings may project up to 5 feet into the required setback or separation area if they are no lower than 20 feet above existing or finished grade. Decks may cover no more than 20 percent of the total setback or separation area. b) Unenclosed porches or steps for residential units no higher than 4 feet above the grade at the street lot line closest to the porch are permitted. b. A setback of at least 10 feet from the street lot line is required along non-arterial north-south avenues for at least 25 percent of the lot frontage or 100 feet of the lot frontage, whichever is less. c. Required setback and areas separating structures identified in subsections 23.47A.009.B.4.a and 23.47A.009.B.4.b shall include landscaping, paving, and lighting. Sidewalks for pedestrian access, plazas, or other approved amenity or landscaped areas are permitted in required setback or separation areas. d. Upper-level setback requirements along SW Alaska Street 1) Structures exceeding 65 feet in height on lots abutting SW Alaska Street between 38th Avenue SW and California Avenue SW shall maintain a minimum setback of 10 feet for that portion of the structure between 45 feet and 55 feet in height. 2) For portions of a structure above 55 feet in height, an additional minimum setback is required at a rate of at least 1 foot of setback for every 5 feet of height that exceeds 55 feet, up to the maximum allowable height. 3) Structures located within 100 feet of Fauntleroy Way SW are exempt from the upper-level setback requirement. 4) Heights in this subsection 23.47A.009.B.4.d shall be measured from the middle of the street lot line along SW Alaska Street. C. Bitter Lake Urban Center. Development on lots designated on Map A for 23.47A.009 shall meet the following requirements: Map A for 23.47A.009 Standards applicable to specific areas: Bitter Lake 1. Upper-level setback requirement. The following standards apply to development on lots abutting the east side of Linden Avenue North or along both sides of the corridor required in subsection 23.47A.009.C.2. a. Any portion of a structure greater than 45 feet in height, measured from the finished grade along the street property line that abuts Linden Avenue North or along the access corridor required in subsection 23.47A.009.C.2, measured from the finished grade along the edge of the access corridor, shall set back an average of 10 feet from the lot line abutting Linden Avenue North or from the edge of the access corridor as measured according to Section 23.86.012 . The maximum depth of a setback that can be used for calculating the average setback is 20 feet. b. Structures permitted in required setbacks are subject to subsection 23.47A.014.G. 2. Corridor requirement. An access corridor shall be provided on lots over 8 acres that abut Linden Avenue North and Aurora Avenue North, to connect Linden Avenue North and Aurora Avenue North. The location of the proposed corridor shall be clearly shown on the site plan that is submitted with the permit application. a. The corridor shall have a minimum width of 40 feet and a maximum width of 60 feet. b. The point at which the corridor intersects Linden Avenue North and Aurora Avenue North shall be at least 335 feet south of the south boundary of the North 135th Street right-of-way, and 700 feet north of the north boundary of the North 130th Street right-of-way, as illustrated by example in Map A for 23.47A.009. c. The corridor shall include a minimum of one walkway, at least 6 feet wide, extending between Linden Avenue North and Aurora Avenue North. If vehicle access is provided within the corridor, the corridor shall include walkways at least 6 feet wide along both sides of the vehicle access. d. Landscaping shall be provided along the corridor. If vehicle access is provided within the corridor, trees shall be provided between the walkways and vehicle travel lanes. The Director will determine the number, type, and placement of trees to be provided in order to: 1) Match trees to the available space; 2) Complement existing or planned street trees on abutting streets; and 3) Encourage healthy growth through appropriate spacing. e. Pedestrian-scaled lighting shall be provided along the corridor. f. The corridor shall not include any features or structures except the following: 1) Vehicle access, not more than one lane in each direction and meeting the standards of Section 23.54.030 . 2) Parking meeting the standards of Section 23.54.030 is allowed along vehicle access lanes within the corridor. Such parking is in addition to the maximum number of spaces allowed under subsection 23.54.015.C.2. The requirements of subsection 23.47A.032.A do not apply to access to parking from the corridor. 3) Overhead horizontal building projections of an architectural or decorative character such as cornices, eaves, sills, and gutter, provided that they project no more than 18 inches from the structure facade. 4) Ramps or other devices that provide access for the disabled and elderly and that meet the standards of the Seattle Building Code are permitted. 5) Stairs or ramps to accommodate changes in grade. 6) Underground structures. 7) Unenclosed porches or steps for residential units no higher than 4 feet above the finished grade of the corridor are permitted to project no more than 4 feet into the corridor. 8) Green stormwater infrastructure. 9) Features required elsewhere in this subsection 23.47A.009.C.2. 10) The Director may approve other features or structures, such as overhead weather protection, signage, and art, that do not impede safe access from the site to Linden Avenue North and Aurora Avenue North, and that enhance pedestrian comfort and safety of the corridor. g. If the area proposed for development on a site meeting the size threshold for this subsection 23.47A.009.C.2 is less than the full lot, the Director may waive or modify the access corridor requirement, if the applicant submits a site plan demonstrating how Linden Avenue North and Aurora Avenue North will be connected by an access corridor when the remainder of the lot is developed. D. Roosevelt Urban Center. The following provisions apply within the area shown on Map B for 23.47A.009. Map B for 23.47A.009 Roosevelt 1. Setback requirements a. The following setbacks are required from the listed street property lines: 1) Northeast 66th Street. An average ground-level setback of 10 feet along the length of the street property line and a minimum upper-level setback of 4 feet. The minimum upper-level setback shall be provided in addition to the required ground-level setback at all points along the length of the street property line at 45 feet of height and above, as measured from average finished grade. 2) Brooklyn Avenue Northeast. An average ground-level setback of 5 feet along the length of the street property line and a minimum upper-level setback of 4 feet. The minimum upper-level setback shall be provided in addition to the required ground-level setback at all points along the length of the street property line at 45 feet of height and above, as measured from average finished grade. 3) 14th Avenue Northeast. An average ground-level setback of 15 feet and a minimum ground-level setback of 5 feet along the length of the street property line and a minimum upper-level setback of 3 feet. The minimum upper-level setback shall be provided in addition to the required ground-level setback at all points along the length of the street property line at 45 feet of height and above, as measured from average finished grade. 4) 15th Avenue Northeast. A minimum ground-level setback of 5 feet along the length of the street property line and an average upper-level setback of 7 feet. The average upper-level setback shall be provided in addition to the required ground-level setback at all points along the length of the street property line at 45 feet of height and above, as measured from average finished grade. 5) Northeast 65th Street and 12th Avenue Northeast. An average ground-level setback of 8 feet shall be provided, and the setback may include pedestrian access and circulation. b. Structures permitted in required setbacks are subject to subsection 23.47A.014.G, except that: 1) Decks with open railings may project up to 5 feet into the required setback area if they are no lower than 20 feet above existing or finished grade. Decks may cover no more than 20 percent of the total setback area. 2) Stoops or porches providing direct access to individual housing units may project up to 5 feet into the required ground-level setback area, except that portions of stoops or porches not more than 2.5 feet in height from existing or finished grade, whichever is lower, may extend to a street lot line. The 2.5-foot height limit for stoops or porches does not apply to guard rails or hand rails. Such stoops or porches shall cover no more than 20 percent of the total ground-level setback area. 3) Fences no greater than 4 feet in height are permitted in the required ground-level setback, and up to 2 feet of additional height for architectural features such as arbors or trellises on the top of a fence is permitted. Fence height may be averaged along sloping grades for each 4-foot-long segment of the fence, but in no case may any portion of the fence exceed 6 feet in height. c. Where required setbacks may be averaged, measurement shall be pursuant to subsection 23.86.012.B and the following: 1) Where a building is set back more than 30 feet from a lot line at ground level, 30 feet shall be used as the ground-level setback amount for averaging purposes. 2) Where averaging is allowed for a required upper-level setback, the measurement shall be taken horizontally from points directly above the lot line to the facade of the structure at the height where the upper-level setback is required. 2. Landscaping. Required ground-level setbacks shall be landscaped, and may include paving and lighting to enhance pedestrian safety and comfort. Sidewalks, plazas, and other amenities or landscaped areas approved by the Director are permitted in required ground-level setbacks. 3. Limit on commercial uses. Commercial uses are prohibited within 80 feet of the street property line of Northeast 66th Street, except within 50 feet of the intersections of Northeast 66th Street with Brooklyn Avenue Northeast, 14th Avenue Northeast, 12th Avenue Northeast, and 15th Avenue Northeast, as shown on Map B for 23.47A.009. 4. Housing units on the ground floor. All housing units with a facade that faces Northeast 66th Street with no intervening housing units or commercial uses between the housing unit and the Northeast 66th Street lot line, and located on the first floor of a building, shall have the primary pedestrian entrance to each housing unit directly accessible from the exterior of the structure rather than a primary pedestrian entry through a common entrance hallway. 5. Underground parking. Parking shall be located below grade, except a portion of a below-grade garage may extend up to 4 feet above existing or finished grade, whichever is lower, provided that the parking that extends above grade is fully screened from direct street view by the street-facing facade of the structure or by landscaping. E. Lake City. The following provisions apply to development proposed on lots that are 40,000 square feet in size or greater and located in NC zones as shown on Map C for 23.47A.009. Map C for 23.47A.009 Lots where Lake City area-specific development standards apply 1. Maximum lot coverage a. The maximum lot coverage permitted for principal and accessory structures is 80 percent of the lot area. b. Lot coverage exceptions. The following structures or portions of structures are not counted in the lot coverage calculation: 1) Portions of a structure that are below grade or that do not extend more than 4 feet above the finished grade. 2) The first 18 inches of overhead horizontal building projections of an architectural or decorative character, such as cornices, eaves, sills, and gutters. 3) Ramps or other devices that provide access for the disabled and elderly and that meet the standards of the Seattle Building Code. 4) The first 4 feet of unenclosed porches or steps for residential units. c. In the portion of the lot that is not covered by structures, owners are encouraged to provide improvements at-grade that enhance the usability and livability of the lot for occupants and visitors, such as pedestrian circulation areas, landscaping, lighting, weather protection, art, or other similar improvements. 2. Facade modulation a. Facade modulation requirements apply to all portions of a structure up to a height of 35 feet and located within 10 feet of a street lot line on streets designated by Map C for 23.47A.009. b. The maximum width of any unmodulated facade is 100 feet. Facades longer than 100 feet shall be modulated by stepping back the facade from the street lot line for a minimum depth of 10 feet and a minimum width of 15 feet. c. Facade modulation requirements do not apply to portions of a structure that are below grade or that do not extend more than 2 feet above the finished grade at the lot line. 3. Maximum structure width a. On streets designated by Map C for 23.47A.009, the maximum allowed structure width is 250 feet. b. Structure width limits do not apply to portions of a structure that are below grade or that do not extend more than 2 feet above the finished grade at the lot line. 4. Upper-level setbacks a. On streets designated by Map C for 23.47A.009, a setback with an average depth of 10 feet from abutting street lot lines is required for portions of a structure above a height of 35 feet. The maximum depth of a setback that can be used to calculate the average setback is 20 feet. b. A setback with an average depth of 15 feet from abutting street lot lines is required for portions of a structure above a height of 65 feet. The maximum depth of a setback that can be used to calculate the average setback is 25 feet. 5. Structures permitted in required setbacks are subject to subsection 23.47A.014.G. F. Ballard Regional Center. The following provisions apply to development proposed in NC zones within the Ballard Regional Center. 1. Maximum lot coverage on lots 40,000 square feet in size or greater: a. The maximum lot coverage permitted for principal and accessory structures is 80 percent of the lot area. b. Lot coverage exceptions. The following structures or portions of structures are not counted in the lot coverage calculation: 1) Portions of a structure that are below grade or that do not extend more than 4 feet above the existing or finished grade, whichever is lower. 2) The first 18 inches of overhead horizontal building projections of an architectural or decorative character, such as cornices, eaves, sills, and gutters. 3) Ramps or other devices that provide access for the disabled and elderly and that meet the standards of the Seattle Existing Building Code. 4) The first 4 feet of unenclosed porches or steps for residential units. c. In the 20 percent of the lot that remains uncovered, as required by this subsection 23.47A.009.F.1, not more than ten parking spaces may be provided, and applicants are encouraged to provide elements at grade that enhance the usability and livability of the lot for residents and tenants such as pedestrian circulation areas, landscaping, lighting, weather protection, art, or other similar features. 2. Facade modulation a. Facade modulation requirements apply to all portions of a street-facing facade of a structure up to a height of 45 feet located within 10 feet of a street lot line, according to provisions of subsection 23.47A.009.F.2.c. b. The maximum width of any unmodulated street-facing facade is 100 feet. Facades longer than 100 feet shall be modulated at no greater than 100-foot intervals by stepping back the facade from the street lot line for a minimum depth of 10 feet and a minimum width of 15 feet. c. Facade modulation requirements do not apply to portions of a structure that are below grade or that do not extend more than 2 feet above the existing or finished grade at the street lot line, whichever is lower. 3. Maximum structure width a. The maximum allowed structure width is 250 feet. b. Structure width limits do not apply to portions of a structure that are below grade or that do not extend more than 2 feet above the existing or finished grade at the street lot line, whichever is lower. 4. Setback requirements a. Street-level setbacks 1) In the area shown on Map D for 23.47A.009, portions of a structure up to 10 feet above the abutting sidewalk grade facing 15th Avenue NW shall be set back from the street lot line by a minimum depth of 6 feet up to a maximum depth of 10 feet. 2) The provisions of subsection 23.47A.009.F.2 do not apply to the area described in subsection 23.47A.009.F.4.a.1. b. Upper-level setbacks 1) A setback with an average depth of 10 feet from all abutting street lot lines is required for portions of a structure above a height of 45 feet. The maximum depth of a setback that can be used for calculating the average setback is 20 feet. 2) A setback with an average depth of 15 feet from all street lot lines is required for portions of a structure above a height of 65 feet. The maximum depth of a setback that can be used for calculating the average setback is 25 feet. 5. Structures permitted in required setback and separation areas according to this subsection 23.47A.009.F are subject to subsection 23.47A.014.G. 6. In the area shown on Map E for Section 23.47A.009 : a. All dwelling units shall have sound-insulating windows sufficient to maintain interior sound levels at 60 decibels or below in consideration of existing environmental noise levels at the site. The applicant shall submit an analysis of existing noise levels and documentation of the sound insulating capabilities of windows shall be indicated on the plan. b. All dwelling units shall have a permanently installed air cooling system and a balanced ventilation system, which may be combined. The ventilation system shall filter any outdoor air supply through filters rated MERV 13 or higher as determined by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE). The air cooling and ventilation systems shall be indicated on the plan. Map D for 23.47A.009 Areas where street-level setbacks are required Map E for 23.47A.009 Areas where noise-attenuating windows and air cooling and ventilation are required G. University District Regional Center. The following provisions apply to specified NC zones within the portion of the University District Regional Center west of 15th Avenue NE. 1. Maximum width and depth limits. The following standards apply to NC zones with a mapped height limit exceeding 40 feet: a. The maximum width and depth of a structure is 250 feet, except as otherwise provided in this subsection 23.47A.009.G.1. The width and depth limits do not apply to below-grade or partially below-grade stories with street-facing facades that do not extend more than 4 feet above the sidewalk, measured at any point above the sidewalk elevation to the floor above the partially below-grade story, excluding access. b. For the stories of a structure subject to width and depth limits, all portions of the same story that are horizontally contiguous, including any portions connected by doorways, ramps, bridges, stairways, and other such features, shall be included in the measurement of width and depth. The width and depth limit of stories in separate structures or structures on the same lot that abut but are not internally connected shall be measured separately. Designated Landmark structures and vulnerable masonry structures included on a list promulgated by the Director that are retained on the lot are excluded from the width and depth measurement, whether or not internally or externally connected to a new structure. c. Width and depth limits do not apply to stories of a structure with more than 50 percent of the total gross floor area occupied by any of the following uses: 1) Community clubs or community centers; 2) Religious facilities; 3) Arts facilities; 4) Child care centers or elementary or secondary schools; or 5) Performing arts theaters. 2. Provisions for the transfer of development rights (TDR) and transfer of development potential (TDP) a. Lots located in NC3 and NC3P zones with height limits of 55 feet or greater are eligible as open space, vulnerable masonry structure, or Landmark TDR and TDP sending sites if the lot meets the definition of the applicable TDR or TDP sending site in Chapter 23.84A and meets all applicable standards in Section 23.58A.042 . b. The maximum amount of TDR and TDP that can be transferred from an eligible sending site shall not exceed an amount of floor area equivalent to the numerical value of the FAR permitted on a lot that is solely occupied by residential uses or nonresidential uses in the zone where the sending site is located, as shown on Table A for 23.47A.013, multiplied by the lot area of the sending site and minus the sum of any chargeable floor area on the lot plus any TDR and TDP previously transferred. c. Eligible receiving sites are limited to those lots in SM-U zones specified in subsection 23.48.623.C. H. 23rd and Union. The following provisions apply to development proposed in NC zones within the area shown on Map F for 23.47A.009. Map F for 23.47A.009 Standards applicable to specific areas: 23rd & Union 1. Setback requirements. Setbacks are required along East Spring Street, East Pike Street, 22nd Avenue, and 24th Avenue as shown on Map E for 23.47A.009 as follows: a. A minimum street-level setback of 5 feet along the length of the street property line unless a larger setback is required by subsection 23.47A.008.D.2; and b. A minimum upper-level setback of 15 feet for all portions of a structure greater than 35 feet in height as measured from the average finished grade along the sidewalk; and c. Structures permitted in required setbacks are subject to subsection 23.47A.014.G. 2. Street-level residential uses. Street-level residential uses are required along East Spring Street, East Pike Street, 22nd Avenue, and 24th Avenue as shown on Map E for 23.47A.009 except for the portions of East Pike Street and East Spring Street measured within 80 feet of the property line abutting 23rd Avenue and portion of 24 th Avenue measured within 120 feet of the property line abutting East Union Street. I. 23rd and Jackson. The following provisions apply to development proposed in NC zones within the area shown on Map G for 23.47A.009. Map G for 23.47A.009 Standards applicable to specific areas: 23rd & Jackson 1. Setback requirements a. Along South Jackson Street facing property lines as shown on Map F for 23.47A.009, a minimum upper-level setback of 10 feet is required for all portions of a structure greater than 45 feet in height as measured from the average finished grade. b. Structures permitted in required setbacks are subject to subsection 23.47A.014.G. 2. Maximum structure width. On streets designated by Map F for 23.47A.009, the maximum allowed structure width is 250 feet. Facade modulation or building separation can be considered as a break in the maximum structure width if: a. A portion of the street-facing facade projects or is recessed from abutting facade by a minimum depth of 15 feet and a minimum width of 15 feet; or b. A building separation is provided with a minimum width of 15 feet between structures. 3. Pedestrian connection requirement. A proposal that includes development between South Main Street and South King Street and is located within 400 feet east of 23rd Avenue South shall provide a north-south pedestrian connection in area as shown on Map F for 23.47A.009, subject to the following requirements: a. If the pedestrian connection is located adjacent to the right-of-way, it should be incorporated into existing or planned sidewalks. b. The pedestrian connection shall have a minimum width of 15 feet, and include at least one of the following: 1) Entries to retail stores or other buildings; 2) Seating areas for pedestrians; 3) Street furniture; 4) Bicycle parking; 5) Landscaping; 6) Pedestrian scale lighting; 7) Water features; or 8) Overhead weather protection. c. The pedestrian connection shall include a minimum 6-foot paved walkway width and shall be designed to connect to existing or planned sidewalks and crosswalks. d. The connection may be located between structures, or may be located in a parking area if the paved walkway is separated from the parking area with special pavements or other treatments to protect pedestrians from vehicles. J. Georgetown. The following provisions apply to development proposed in NC zones within the area shown on Map H for 23.47A.009. 1. Additional floor area for arts space, community club, or center. An additional increment of up to 1.0 FAR is permitted above the maximum FAR limit of the zone if a lot includes an arts facility operated by a for-profit or not-for-profit operator, or a community club or center, subject to the following conditions: a. The amount of the additional increment of FAR shall not exceed floor area of the arts facility. b. The minimum floor area provided for a qualifying arts facility, community club, or center is 2,000 square feet. c. The space shall be occupied by an arts facility, community club, or center for the life of the building on the lot. If the property owner is unable to secure a for-profit or not-for-profit organization to operate the arts facility, community club, or center, after a six-month period, if the space remains unoccupied, it may be used for other non-profit purposes such as a community and/or public area, under the following conditions: 1) The space shall be made available to community and charitable organizations and is not to be used for profit-making activities; 2) The space shall be made available for both day and evening use; 3) The space shall be made available on a first-come, first-served basis to community and charitable organizations; and 4) Availability of the space and contact person(s) shall be made known to community and charitable groups through means such as newspaper articles, radio announcements, and flyers. d. No permit after the first building permit, no permit for any construction activity other than excavation and shoring, and no permit for occupancy of existing floor area by any use shall be issued for development that includes an arts facility to gain the increase in FAR until the applicant has demonstrated to the satisfaction of the Director that a lease with a for-profit or not-for-profit arts organization has been secured to occupy the space for a minimum of one year. 2. Additional floor area for historic preservation. An additional increment of up to 1.0 FAR is permitted above the maximum FAR limit if a lot includes one or more structures that have been designated as landmarks pursuant to Chapter 25.12 , subject to the following conditions: a. The structure is rehabilitated so that all features and characteristics are subject to controls and incentives designated pursuant to Chapter 25.12 and comply with any certificates of approval issued by the Landmarks Preservation Board, all as determined by the Director of the Department of Neighborhoods; b. A notice is recorded in the King County real estate records, in a form satisfactory to the Director, regarding the additional increment of floor area allowed and the effect thereof under the terms of this Chapter 23.47A ; c. If the increased amount of FAR allowed under this subsection 23.47A.009.J remains on the lot, the structure must remain designated as a Landmark; and d. The owner shall maintain the exterior and interior of the Landmark structure in good condition in a manner that preserves the Landmark features and characteristics of the structure. 3. Additional height for arts space or historic preservation. The height limit is increased by 10 feet for any development that gains additional floor area for arts space pursuant to subsection 23.47A.009.J.1 or additional floor area for historic preservation pursuant to subsection 23.47A.009.J.2. 4. All dwelling units shall have sound-insulating windows sufficient to maintain interior sound levels at 60 decibels or below in consideration of existing environmental noise levels at the site. The applicant shall submit an analysis of existing noise levels and documentation of the sound insulating capabilities of windows shall be indicated on the plan. 5. All dwelling units shall have a permanently installed air cooling system and a balanced ventilation system, which may be combined. The ventilation system shall filter any outdoor air supply through filters rated MERV 13 or higher as determined by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE). The air cooling and ventilation systems shall be indicated on the plan. Map H for 23.47A.009 Standards Applicable to Specific Areas: Georgetown K. Judkins Park. The following provisions apply to development proposed in NC zones within the area shown on Map I for 23.47A.009. 1. All dwelling units shall have sound-insulating windows sufficient to maintain interior sound levels at 60 decibels or below in consideration of existing environmental noise levels at the site. The applicant shall submit an analysis of existing noise levels and documentation of the sound insulating capabilities of windows shall be indicated on the plan. 2. All dwelling units shall have a permanently installed air cooling system and a balanced ventilation system, which may be combined. The ventilation system shall filter any outdoor air supply through filters rated MERV 13 or higher as determined by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE). The air cooling and ventilation systems shall be indicated on the plan. Map I for 23.47A.009 Standards Applicable to Specific Areas: Judkins Park L. South Park. The following provisions apply to development proposed in NC zones within the areas shown on Map J for 23.47A.009. 1. All dwelling units shall have sound-insulating windows sufficient to maintain interior sound levels at 60 decibels or below in consideration of existing environmental noise levels at the site. The applicant shall submit an analysis of existing noise levels and documentation of the sound insulating capabilities of windows shall be indicated on the plan. 2. All dwelling units shall have a permanently installed air cooling system and a balanced ventilation system, which may be combined. The ventilation system shall filter any outdoor air supply through filters rated MERV 13 or higher as determined by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE). The air cooling and ventilation systems shall be indicated on the plan. Map J for 23.47A.009 Standards Applicable to Specific Areas: South Park M. Interbay. The following provisions apply to development proposed in C zones within the areas shown on Map K for 23.47A.009. 1. All dwelling units shall have sound-insulating windows sufficient to maintain interior sound levels at 60 decibels or below in consideration of existing environmental noise levels at the site. The applicant shall submit an analysis of existing noise levels and documentation of the sound insulating capabilities of windows shall be indicated on the plan. 2. All dwelling units shall have a permanently installed air cooling system and a balanced ventilation system, which may be combined. The ventilation system shall filter any outdoor air supply through filters rated MERV 13 or higher as determined by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE). The air cooling and ventilation systems shall be indicated on the plan. Map K for 23.47A.009 Standards Applicable to Specific Areas: Interbay (Ord. 127376 , § 49, 2025; Ord. 127375 , § 45, 2025; Ord. 126862 , § 7, 2023; Ord. 125791 , § 51, 2019; Ord. 125603 , § 27, 2018; Ord. 125361 , § 2, 2017; Ord. 125360 , § 2, 2017; Ord. 125272 , § 27, 2017; Ord. 125267 , § 12, 2017; Ord. 125125 , § 2, 2016; Ord. 125103 , § 3, 2016; Ord. 125081 , § 3, 2016; Ord. 124952 , § 14, 2015; Ord. 124919 , § 136, 2015; Ord. 124378 , § 41, 2013; Ord. 123816, § 4, 2012; Ord. 123790, § 2, 2011.)