23.42.110

Change from one nonconforming use to another nonconforming use

Seattle Municipal Code · Seattle Mun. Code § 23.42.110

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A nonconforming use may be converted by an administrative conditional use authorization to another use not otherwise permitted in the zone subject to the following limitations and conditions. A. The proposed new use must be no more detrimental to properties in the zone and vicinity than the existing use. This determination shall be based on consideration of the following factors: 1. The zones in which both the existing use and the proposed new use are allowed; 2. The number of employees and clients associated or expected with the proposed use; 3. The relative parking, traffic, light, glare, noise, odor and similar impacts of the two uses and how these impacts could be mitigated. B. The existence of a single residential unit, such as a caretaker's or proprietor's unit, accessory to a nonconforming commercial use shall not be treated as having established a residential use, and such a unit may be converted or changed provided that it is the only residential use in the structure and comprises less than half of the total floor area of the structure. C. Parking requirements for the proposed use shall be determined by the Director. D. If the new use is permitted, the Director may require mitigation measures, including but not limited to landscaping, sound barriers or fences, mounding or berming, adjustments to setback or parking standards, design modification, or limiting hours of operation. (Ord. 127376 , § 26, 2025; Ord. 126509 , § 32, 2022 [zone name change]; Ord. 123495, § 16, 2011; Ord. 120293 , § 1, 2001.)