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HomeMy WebLinkAboutORD 60911 CITY OF RENTON, WASHINGTON ORDINANCE NO. 6091 AN ORDINANCE OF THE CITY OF RENTON, WASHINGTON, AMENDING SUBSECTIONS 4-2-110.A, 4-2-110.C, 4-2-110.E.4, 4-2-110.E.10, AND 4-5-060.E.2.c OF THE RENTON MUNICIPAL CODE, ADDING AN EXEMPTION FOR CERTAIN PHOTOVOLTAIC (SOLAR) SYSTEMS FROM BUILDING PERMITS, AUTHORIZING CORRECTIONS, PROVIDING FOR SEVERABILITY, AND ESTABLISHING AN EFFECTIVE DATE. WHEREAS, this matter was duly referred to the Planning Commission for investigation and study, and the matter was considered by the Planning Commission; and WHEREAS, pursuant to RCW 36.70A.106, on May 13, 2022, the City notified the State of Washington of its intent to adopt amendments to its development regulations; and WHEREAS, the Planning Commission held a public hearing on June 1, 2022, considered all relevant matters, and heard all parties in support or opposition, and subsequently forwarded a recommendation to the City Council; NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO ORDAIN AS FOLLOWS: SECTION I. All portions of the Renton Municipal Code in this ordinance not shown in strikethrough and underline edits or are not explicitly repealed herein remain in effect and unchanged. SECTION II. Subsection 4-2-110.A of the Renton Municipal Code is amended as shown on Attachment A. SECTION III. Subsection 4-2-110.C of the Renton Municipal Code is amended as follows: 4-2-110C DEVELOPMENT STANDARDS FOR RESIDENTIAL DEVELOPMENT (ACCESSORY DWELLING UNITS) ORDINANCE NO. 6091 2 MAXIMUM NUMBER AND SIZE General17 RC, R-1, R-4, R-6, R-8, R-10, and R-14 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.41 MAXIMUM UNIT SIZE Lot Area: Maximum ADU Size40, 41 3,000 sq. ft. or less 600 sq. ft. 3,001 – 4,999 sq. ft. or less 700 sq. ft. 5,000 – 6,999 sq. ft. or less 800 sq. ft. 7,000 – 8,999 sq. ft. or less 900 sq. ft. Greater than 9,000 sq. ft. 1,000 sq. ft. MAXIMUM WALL PLATE HEIGHT 10, 18, 19, 41 RC, R-1, R-4, R-6, R-8, R-10 and R-14 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 4-9-250.42 LOCATION General RC, R-1, R-4, R-6, R-8, R-10 and R-14 ADUs shall be located at least 6 ft. from any residential structure. ORDINANCE NO. 6091 3 MINIMUM SETBACKS4, 41 Front Yard and Secondary Front Yard RC, R-1, R-4, R-6, R-8, R-10 and R-14 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. Side Yard RC and R-1 25 ft. R4, R-6 and R- 8 5 ft. R-10 and R-14 4 ft. Rear Yard RC, R-1, R-4, R-6, R-8, R-10 and R-14 5 ft. When located within 10 ft. of the rear property line, at least 25% of the lineal length of the rear yard shall remain unoccupied from accessory dwellings, except when the rear property line abuts an alley. Clear Vision Area RC, R-1, R-4, R-6, R-8, R-10 and R-14 In no case shall a structure over 42 in. in height intrude into the 20 ft. clear vision area defined in RMC 4-11-030. CRITICAL AREAS General RC, R-1, R-4, R-6, R-8, R-10 and R-14 See RMC 4-3-050, Critical Areas Regulations, and 4-3-090, Shoreline Master Program Regulations. ORDINANCE NO. 6091 4 SECTION IV. Subsections 4-2-110.E.4 and 4-2-110.E.10 of the Renton Municipal Code are amended as shown below. All other provisions in 4-2-110.E remain in effect and unchanged. 4. Allowed Projections into Setbacks: a. Fireplace Structures, Windows: Fireplace structures, bay or garden windows, enclosed stair landings, and similar structures as determined by the Community and Economic Development Administrator may project twenty-four inches (24") into any setback; provided, such projections are: i. Limited to two (2) per facade. ii. Not wider than ten feet (10'). b. Fences, Rockeries, and Retaining Walls: See RMC 4-4-040, Fences, Hedges, and Retaining Walls. c. Steps and Decks: Uncovered steps and decks not exceeding eighteen inches (18") above the finished grade may project to any property line. Uncovered steps and decks having no roof covering and not exceeding forty-two inches (42") high may be built within the front yard setback. d. Eaves: Eaves and cornices may project up to twenty-four inches (24") into any required setback. e. Porches and Stoops: May project into front setbacks up to eight feet (8') and into side setbacks along a street up to five feet (5'). f. Overhead Weather Protection: ORDINANCE NO. 6091 5 i. Roofs and awnings situated above pedestrian entryways may extend up to five feet (5') into a required setback and may extend no wider than three feet (3') on either side of the entryway. ii. Roofs or other structures providing relief from rain or sun (e.g., pergola) attached to the rear facade of the primary structure may intrude into rear yard setbacks provided such roofs shall be set back a minimum of five feet (5') from rear lot lines and shall meet the side yard setback requirement for primary structures. The height and area of such roofs shall be regulated in the same manner as detached accessory structures. g. Accessibility Ramps: Ramps required for barrier-free access, and meeting all Building Code requirements including slope and handrails, may intrude into required setbacks. This exemption will be limited to the extent necessary to meet the Building Code requirements. h. Cisterns and Rain Barrels: Rain barrels, cisterns, and other rainwater catchment systems may intrude into a required setback as follows: i. Elements are not permitted in the front setback. ii. Elements which are less than fifty-four inches (54") above finished grade and contain up to six hundred (600) gallons may intrude into a side or rear setback a distance no greater than twenty percent (20%) of that setback, but must maintain at least three feet (3') of undisturbed setback. ORDINANCE NO. 6091 6 iii. Elements which are greater than fifty-four inches (54") above finished grade or contain over six hundred (600) gallons shall not intrude upon side and rear setback requirements. i. Arbor, Pergola or Trellis: Allowed in required yard setbacks if they meet the following provisions: i. The length of any side shall not exceed twelve feet (12') and the footprint shall not exceed eighty (80) square feet, inclusive of eaves; ii. A maximum height from finished grade to the top of the structure of ten feet (10'); iii. Both sides and roof shall be at least fifty percent (50%) open, or, if latticework is used, there shall be a minimum opening of two inches (2") between crosspieces. iv. Limited to two (2) such structures per lot. j. Heating, Ventilation, and Air Conditioning (HVAC) Systems: HVAC Systems may extend into any side or rear yard setback. k. Rooftop photovoltaic (PV) systems may project to any setback if the following provisions are met: i. The proposed system does not require a building permit pursuant to RMC 4-5-060.E2c; and ii. The system is located on a legally established nonconforming single-family dwelling, accessory dwelling unit, or unit-lot townhome. ORDINANCE NO. 6091 7 10. Rooftop photovoltaic (PV) systems: Proposed rooftop solar systems that do not require a building permit pursuant to RMC 4-5-060.E.2.c shall not be subject to the maximum height standards applied to a single-family dwelling, accessory dwelling unit, or unit-lot townhome. Reserved. SECTION V. Subsection 4-5-060.E.2.c of the Renton Municipal Code is amended as shown below. All other provisions in 4-5-060.E remain in effect and unchanged. c. Building. i. One (1) story detached accessory structures constructed under the provisions of the IRC used as tool and storage sheds, tree supported play structures, playhouses and similar uses, provided the floor area does not exceed two hundred (200) square feet (18.58 m2). ii. Fences not over six feet (6’) (1,829 mm) high. iii. Oil derricks. iv. Retaining walls and rockeries which are not over four feet (4’) (1,219 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge or impounding Class I, II or III-A liquids. v. Water tanks supported directly on grade if the capacity does not exceed five thousand (5,000) gallons (18,925 L) and the ratio of height to diameter or width does not exceed two (2) to one (1). vi. Sidewalks, decks and driveways not more than thirty inches (30”) (762 mm) above grade and not over any basement or story below and which are not part of an accessible route. ORDINANCE NO. 6091 8 vii. In-kind re-roofing of one (1) - and two (2) - family dwellings provided the roof sheathing is not removed or replaced. viii. Painting, non-structural wood and vinyl siding, papering, tiling, carpeting, cabinets, counter tops and similar finish work, provided that existing, required accessible features are not altered. ix. Temporary motion picture, television and theater stage sets and scenery. x. Prefabricated swimming pools accessory to one (1) - and two (2) - family dwellings or Group R-3 occupancy which are less than twenty-four inches (24”) (610 mm) deep, do not exceed five thousand (5,000) gallons (18,925 L) and are installed entirely above ground. xi. Shade cloth structures constructed for garden nursery or agricultural purposes and not including service systems. xii. Swings, slides and other similar playground equipment. xiii. Window awnings supported by an exterior wall which do not project more than fifty-four inches (54”) (1,372 mm) from the exterior wall and do not require additional support of a one (1) - and two (2) - family dwelling or a Group R-3 or U occupancy. xiv. Movable cases, counters and partitions not over five feet nine inches (5’9”) (1,753 mm) in height. xv. Satellite earth station antennas six and one-half feet (6-1/2’) (2 m) or less in diameter in zones other than residential zones. ORDINANCE NO. 6091 9 xvi. Satellite earth station antennas three and one quarter (3-1/4’) (1 m) or less in diameter in residential zones. xvii. Video programming service antennas three and one quarter feet (3-1/4’) (1 m) or less in diameter or diagonal dimension, regardless of zone. xviii. Replacement of nonstructural siding on IRC structures except for veneer, stucco or exterior finish and insulation systems (EFIS). xix. Window and door replacement for IRC structures where openings are not increased, U-Value is .30 or less, safety glass is installed in hazardous locations, and the openable portion of egress window in bedrooms and basements are not decreased in any dimension. xx. Job shacks that are placed at a permitted job site during construction may be allowed on a temporary basis and shall be removed upon final approval of construction. A job shack is a portable structure for which the primary purpose is to house equipment and supplies, and which may serve as a temporary office during construction for the purposes of the construction activity. xxi. Photovoltaic (PV) systems meeting all the following criteria: (a) PV system is designed and proposed for a single-family dwelling, accessory dwelling unit, or unit-lot townhome not more than three (3) stories above grade or detached accessory buildings. (b) PV system is designed for the rooftop of a house in compliance with applicable codes. (c) The mounting system is engineered and designed for PV. ORDINANCE NO. 6091 10 (d) The rooftop is made from lightweight material such as a single layer of composition shingles, metal roofing, lightweight masonry, or cedar shingles. (e) PV system has an approved and issued electrical permit. (f) To address uplift, modules are mounted no higher than eighteen inches (18”) above the surface of the roofing to which they are affixed, and except for flat roofs, no portion of the system may exceed the highest point of the roof. (g) Total dead load of panels, supports, mountings, raceways, and all other appurtenances weigh no more than four (4) pounds per square foot. (h) Supports for solar panels are installed to spread the dead load across as many roof-framing members as needed to ensure that at no point are loads created in excess of fifty (50) pounds. (i) The installation shall comply with the manufacturer’s instructions. (j) A method and type of weatherproofing roof penetrations is provided. (k) The house is code compliant with setbacks and height, or the code allows the expansion of nonconformity for solar panels. (l) The PV panels are mounted no higher than the roof ridge or apex of roof (applies to only sloped roofs). ORDINANCE NO. 6091 11 (m) Roof access, pathways, and spacing requirements shall be provided in accordance with IFC 1204.2 and WAC 51-54A-1204. (n) Roof and wall penetrations will be flashed and sealed to prevent the entry of water, rodents, and insects. (o) PV modules and supporting structure will be constructed of noncombustible materials or fire-retardant treated wood equivalent to that of required for the roof construction. (p) PV system shall be installed by a licensed contractor. SECTION VI. Upon approval of the City Attorney, the City Clerk is authorized to direct the codifier to make necessary corrections to this ordinance, including the corrections of scriveners or clerical errors; references to other local, state, or federal laws, codes, rules, or regulations; or ordinance numbering and section/subsection numbering and references. The City Clerk is further authorized to direct the codifier to update any chapter, section, or subsection titles in the Renton Municipal Code affected by this ordinance. SECTION VII. If any section, subsection, sentence, clause, phrase, or word of this ordinance should be held to be invalid or unconstitutional by a court or competent jurisdiction, such invalidity or unconstitutionality thereof shall not affect the constitutionality of any other section, subsection, sentence, clause, phrase, or word of this ordinance. SECTION VIII. This ordinance shall be in full force and effect December 20, 2022. No later than five (5) days prior to such effective date, a summary consisting of this ordinance’s title shall be published in the City’s official newspaper. ORDINANCE NO. 6091 13 ATTACHMENT A 4-2-110A1 DEVELOPMENT STANDARDS FOR RESIDENTIAL ZONING DESIGNATIONS (PRIMARY STRUCTURES) RC R-1 R-4 R-6 R-8 R-10 R-14 RMF Minimum Net Density (per Net Acre)1, 2, 15 None 3 dwelling units 4 dwelling units 5 dwelling units30 7 dwelling units30 10 dwelling units30 Maximum Net Density (per Net Acre, Except per Net 10 Acres in RC)2, 14, 15 1 dwelling unit 1 dwelling unit7, 36 4 dwelling units 6 dwelling units 8 dwelling units38 10 dwelling units29 14 dwelling units29 20 dwelling units29 Maximum Number of Dwellings (per Legal Lot)2 1 dwelling with 1 accessory dwelling unit 1 dwelling with 1 accessory dwelling unit7 1 dwelling with 1 accessory dwelling unit 1 dwelling with 1 accessory dwelling unit Detached dwellings: 1 dwelling with 1 accessory dwelling unit Attached dwellings: n/a Per Maximum Net Density Minimum Lot Size2, 28, 31 10 acres 1 acre3, 32 9,000 sq. ft.32, 34 7,000 sq. ft.32, 34 5,000 sq. ft.34 Detached dwellings: 4,000 sq. ft. Attached dwellings: n/a Detached dwellings: 3,000 sq. ft. Attached dwellings: n/a n/a ORDINANCE NO. 6091 14 RC R-1 R-4 R-6 R-8 R-10 R-14 RMF Minimum Lot Width31 150 ft. 100 ft.32 70 ft.32 60 ft.32 50 ft. 40 ft. 30 ft. Townhouses: 25 ft. Other Attached Dwellings: 50 ft. Minimum Lot Width31 (Corner Lots) 175 ft. 110 ft. 80 ft. 70 ft. 60 ft. 50 ft. 40 ft. Townhouses: 30 ft. Other Attached Dwellings: 60 ft. Minimum Lot Depth31 300 ft. 200 ft.3, 32 100 ft.32 90 ft.32 80 ft. 70 ft. 60 ft. Townhouses: 50 ft. Other Attached Dwellings: 65 ft. Minimum Front Yard4, 5, 31 30 ft. 30 ft.6 30 ft.6, 33 25 ft.6 20 ft. except when all vehicle access is taken from an alley, then 15 ft.39 15 ft.11, except when all vehicle access is taken from an alley, then 10 ft.39 Townhouses: 15 ft.11, except when all vehicle access is taken from an alley, then 10 ft.39 Other Attached Dwellings: 20 ft. Minimum Rear Yard4, 22, 31 35 ft. 30 ft. 25 ft.33 25 ft. 25 ft.39 15 ft.21, 39 10 ft.21, 39 Townhouses: 10 ft.13, 39 ORDINANCE NO. 6091 15 RC R-1 R-4 R-6 R-8 R-10 R-14 RMF Other Attached Dwellings: 15 ft.39 Minimum Side Yard4, 31 25 ft. 15 ft. Combined 20 ft. with not less than 7.5 ft. on either side. Combined 15 ft. with not less than 5 ft. on either side. 5 ft. Detached Units: 4 ft. Attached Units: 4 ft. for unattached side(s), 0 ft. for the attached side(s).23 Detached Units: 4 ft. Attached Units: 4 ft. for unattached side(s), 0 ft. for the attached side(s).23 5 ft. for unattached side(s), 0 ft. for the attached side(s).13 Minimum Secondary Front Yard4, 5, 31 (applies to Corner Lots) 30 ft. 30 ft.6 30 ft.6, 33 25 ft.6 15 ft.11 15 ft.11 15 ft.11 Townhouses: 15 ft.11 Other Attached Dwellings: 20 ft. Maximum Building Coverage (including Primary and Accessory) 10% 20% 35% 40% 50% 55% 65% Townhouses: 70% Other Attached Dwellings: 35% A maximum coverage of 45% may be allowed through the ORDINANCE NO. 6091 16 RC R-1 R-4 R-6 R-8 R-10 R-14 RMF Hearing Examiner site development plan review process. Maximum Impervious Surface Area 15% 25% 50% 55% 65% 70% 80% 75% Maximum Number of Stories 3 2 3 Maximum Wall Plate Height8, 9, 10, 12, 18, 19 32 ft. 24 ft. 24 ft., increase up to 32 ft. possible subject to administrative conditional use permit approval. Townhouses: 32 ft. Other Attached Dwellings: 32 ft., increase up to 42 ft. possible subject to administrative conditional use permit approval. Maximum Number of Units per Building2 n/a No more than 4 units per building. No more than 6 units per building. n/a ORDINANCE NO. 6091 17 RC R-1 R-4 R-6 R-8 R-10 R-14 RMF Minimum Tree Density 2 significant trees per 5,000 sq. ft. See RMC 4-4-130. Attached units: 4 significant trees per 5,000 sq. ft. See RMC 4-4-130. n/a Minimum Freeway Frontage Setback 10 ft. landscaped setback from the street property line. Maximum Wireless Communication Facilities Height (including Amateur Radio Antennas) See RMC 4-4-140, Wireless Communication Facilities. Amateur radio antennas are allowed a maximum height of 6 feet without a Conditional Use Permit. Larger structures will have a maximum height determined by the Conditional Use Permit process, RMC 4-9-030, Conditional Use Permits. Design Standards See RMC 4-2-115, Residential Design and Open Space Standards. Landscaping See RMC 4-4-070, Landscaping. Exterior Lighting See RMC 4-4-075, Lighting, Exterior On-Site. Screening See RMC 4-4-095, Screening and Storage Height/Location Limitations. Exception for Pre- Existing Legal Lots See RMC 4-10-010, Nonconforming Lots.