Structure height
Seattle Mun. Code § 23.50A.140
in effectMaximum structure height for structures that include industrial and/or non-industrial uses shall be limited as follows: A. There shall be no maximum height limit for structures containing only principal use industrial uses in the MML, II, and UI zones except as provided in subsection 23.50A.140.C or regulated in the Airport Height Overlay District regulations in Chapter 23.64 . B. Except as otherwise stated in the provisions of this Section 23.50A.140 the maximum structure height for any portion of a structure that contains non-industrial uses other than spectator sports facilities whether they are principal or accessory or ancillary, is 45 feet, 65 feet, 75 feet, 85 feet, 125 feet, or 160 feet as designated on the Official Land Use Map, Chapter 23.32 . C. In the MML, II, and UI zones the maximum height of any portion of a structure within 20 feet of an abutting lot with a residential zone shall be 30 feet. D. Except as may be otherwise provided in this Title 23, the maximum structure height in IC zones for all uses is as designated on the Official Land Use Map, Chapter 23.32 . Maximum structure height may be increased or reduced as provided in this subsection 23.50A.140.D or Section 23.50A.160 . 1. An overlay district may increase or reduce the maximum structure height. 2. Water-dependent uses within the Shoreline District are subject to only the height limits of the applicable shoreline environment in Chapter 23.60A . E. Within an II 85-240 zone, the first figure shown in the zone designation is the base height limit, which is the height limit for all uses, except for a structure that complies with the conditions to extra floor area specified in Sections 23.50A.120 through 23.50A.128 on a lot that includes extra floor area. Extra floor area means non-residential chargeable floor area allowed in addition to the base FAR under Chapter 23.58A . The second figure is the applicable height limit for all uses, on a lot that includes extra floor area, for a structure that complies with the conditions to extra floor area specified in Sections 23.50A.120 through 23.50A.128 . ([Renumbered from 23.50A.014]; Ord. 126862 , § 8, 2023.) Reviser's note— The original subsection 23.50A.014.D, codified as 23.50A.140.D, contained a reference to "this Section 23.50A.024.E." Since there never was a 23.50A.024.E, and since the topic of the cross-reference is only in D, the reference has been codified as "this subsection 23.50A.140.D."
Source: Seattle Municipal Code (Municode library)URL: https://library.municode.com/wa/seattle/codes/municipal_codeFetched: 7/25/2026