23.44.180
Institutions
Seattle Municipal Code · Seattle Mun. Code § 23.44.180
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A. Institutions located in a Neighborhood Residential zone shall meet the development standards of this Section 23.44.180 and other sections of Chapter 23.44 except as provided in Section 23.44.030 , Chapter 23.51B , Chapter 23.69 , or Chapter 23.79 . In the event of conflict between the standards in this Section 23.44.180 and other sections of Chapter 23.44 , the standards in this Section 23.44.180 shall control. B. Height limits 1. The height limit for institutions shall be 32 feet, except as provided in subsection 23.44.180.B.2. 2. For gymnasiums, auditoriums, and wood shops that are accessory to an institution, the maximum permitted height is 35 feet if all portions of the structure above the height limit of the zone are set back at least 20 feet from all lot lines. Pitched roofs on the auditorium, gymnasium, or wood shop with a slope of not less than 4:12 may extend 10 feet above the 35-foot height limit. No portion of a shed roof on a gymnasium, auditorium, or wood shop is permitted to extend beyond 35 feet. C. Landscaping 1. Landscaping that achieves a Green Factor score of 0.3 or greater, pursuant to Section 23.86.019 , is required for any lot with: a. Development, either a new structure or an addition to an existing structure, containing more than 4,000 new square feet of non-residential uses; or b. Any parking lot containing more than 20 new parking spaces for automobiles. 2. All required trees shall meet standards promulgated by the Director to provide for the long-term health, viability, and coverage of plantings. These standards may include, but are not limited to, the type and size of plants, spacing of plants, depth, and quality of soil, access to light and air, and protection practices during construction. D. Parking 1. Location of parking. Parking areas and facilities may be located anywhere on the lot except in the required front setback or side street setback. 2. Screening of surface parking areas. Surface parking areas for more than five vehicles shall be screened in accordance with the following requirements: a. Screening shall be provided on each side of the parking area that abuts, or faces across a street, alley, or access easement, a lot in a residential zone. b. Screening shall consist of a fence, solid evergreen hedge, or wall at least 3 feet in height. E. Odors. The venting of odors, vapors, smoke, cinders, dust, gas, and fumes 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. F. Light and glare 1. Exterior lighting for institutions shall be shielded or directed away from residential structures on adjacent lots. 2. Poles for freestanding exterior lighting are permitted up to a maximum height of 32 feet. Light poles for illumination of athletic fields on new and existing public school sites will be allowed to exceed 30 feet pursuant to Chapter 23.51B . G. The Director may allow, as a Type I decision, higher fencing in a required setback when necessary for sports fields. (Ord. 127376 , § 31, 2025.)