23.44.020
Permitted and prohibited uses
Seattle Municipal Code · Seattle Mun. Code § 23.44.020
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A. All uses are permitted outright, prohibited, or permitted as a conditional use according to Table A for 23.44.020 and this Section 23.44.020 . Uses not referred to in Table A for 23.44.020 are prohibited, unless otherwise indicated in this Chapter 23.44 or Chapters 23.51A , 23.51B , or 23.57 . Communication utilities and accessory communication devices, except as exempted in Section 23.57.002 , are subject to this Chapter 23.44 and Chapter 23.57 . Public facilities are subject to Section 23.51A.004 . B. All permitted uses are allowed as a principal use or as an accessory use, unless otherwise indicated in this Chapter 23.44 . Table A for 23.44.020 Permitted and prohibited uses Uses Permitted and prohibited uses A. Residential uses except as listed below P A.1. Assisted living facilities X A.2. Caretaker's quarters X A.3. Congregate residences X/P 1 B. Institutions except as listed below P/CU 2 B.1. Adult care centers X B.2. Colleges X B.3. Hospitals X B.4. Institutes for advanced study X B.5. Museums X B.6. Private clubs X/CU/P 3 B.7. Vocational or fine arts schools X C. Uses in existing or former public schools C.1. Preschools, public or private schools, colleges, and community centers in existing or former public schools P C.2. Uses not otherwise permitted in existing or former public schools P 4 D. Parks and open space uses P E. Ground-floor commercial uses P 5 F. Human service uses X G. Cemeteries P/X 6 H. Community gardens P I. Rail transit facilities and railroads P J. Park and ride facilities CU 7 K. Commercially operating horse farms in existence before July 1, 2000 P 8 L. Uses not otherwise permitted if located in Landmark structures CU 9 M. Uses not otherwise permitted if located in structures unsuited to permitted uses CU 10 N. All other uses X Key to Table A for 23.44.020 P = Permitted outright CU = Permitted as an administrative conditional use X = Prohibited Footnotes to Table A for 23.44.020 1 Congregate residences are allowed within a major transit service area and prohibited in other areas. 2 Institutions meeting development standards including but not limited to Section 23.44.180 are permitted outright. Public schools that do not meet development standards are regulated by Chapter 23.51B and Chapter 23.79 . Institutions other than public schools that do not meet development standards may be permitted as administrative conditional uses pursuant to Section 23.44.030 . 3 New private clubs are prohibited. Existing private clubs are permitted provided that the use is not expanded. Existing private clubs may be expanded as a conditional use only if the expansion would not result in the gross floor area or the number of surface parking spaces exceeding the amount existing on the effective date of this ordinance by more than 25%. 4 Pursuant to procedures in Chapter 23.78 . 5 Ground-floor commercial uses are only allowed if they meet the standards of subsection 23.44.020.E. 6 Pursuant to subsection 23.44.020.D 7 Pursuant to subsection 23.44.030.F. 8 Provided that they are located on lots greater than 10 acres and conform to the limits on the number and location of farm animals and structures containing them set forth in Section 23.42.052 . 9 Pursuant to subsection 23.44.030.D. 10 Pursuant to subsection 23.44.030.E. C. Accessory uses 1. Except as otherwise provided in this subsection 23.44.020.C, accessory uses customarily incidental to principal uses permitted outright are permitted outright. 2. All accessory uses and structures, except for urban farms and structures in urban farm use, must be located on the same lot as the principal use or structure unless otherwise specifically provided. 3. Urban farms with planting area not more than 4,000 square feet are permitted outright as an accessory use. Urban farms with more than 4,000 square feet of planting area may be permitted as an administrative conditional use accessory to any principal use permitted outright or as a conditional use, pursuant to Section 23.42.051 . 4. Piers and floats are permitted, provided they comply with Chapter 23.60A . 5. Bed and breakfast uses are permitted outright if: a. The bed and breakfast use has a valid business license tax certificate issued by the Department of Finance and Administrative Services; b. The bed and breakfast use is operated by the primary resident of the dwelling unit where the bed and breakfast is located or the resident operator; c. There is no evidence of the bed and breakfast use visible from the exterior of the dwelling unit except for a sign permitted by subsection 23.55.020.D.1; and d. The bed and breakfast use has no more than five guest rooms, provided that this limitation does not apply to bed and breakfast uses that were established on or before April 1, 1987. 6. Accessory dwelling units are permitted, provided they comply with Section 23.42.022 . 7. Human service uses accessory to institutional uses are permitted outright. D. Existing cemeteries are permitted and are prohibited from expanding. New cemeteries are prohibited. For purposes of this Section 23.44.020 , a change in a cemetery boundary is not considered an expansion in size and is permitted provided that: 1. The change does not increase the net land area occupied by the cemetery; 2. The land being added to the cemetery is contiguous to the existing cemetery and is not separated from the existing cemetery by a public street or alley whether or not improved; and 3. The use of the land being added to the cemetery will not result in the loss of housing. E. All ground-floor commercial uses permitted pursuant to this Section 23.44.020 shall meet the following conditions: 1. The commercial use is limited to the following: a. Food processing and craft work; b. General sales and services; and c. Restaurants; 2. The gross floor area of commercial uses does not occupy more than 2,500 square feet of gross floor area; 3. The commercial use is located only on or below the ground floor of a structure; 4. Vents for venting of odors, vapors, smoke, gas and fumes, and exterior heat exchangers and other similar devices (e.g., related to ventilation, air conditioning, refrigeration) shall be at least 10 feet above finished sidewalk grade and directed away to the extent possible from residential uses within 50 feet of the vent; 5. Drive-in businesses are prohibited as a principal or accessory use; 6. Outdoor sales of food or beverages must be located at least 50 feet from adjacent lots; 7. Outdoor service of food or beverages must be located at least 50 feet from adjacent lots; and 8. Businesses may not be open between the hours of 10 p.m. and 6 a.m. (Ord. 127376 , § 31, 2025.)