Snohomish County caps building height by zone in the SCC 30.23 bulk matrices. Common urban residential zones allow about 30 to 35 feet; height is measured from average final grade to the roof, with specific exemptions for chimneys, spires, towers, and similar features.
Under SCC 30.23.050(1), maximum building and structure height follows the standards in Tables 30.23.030 and 30.23.032. In Table 30.23.032, the R-7,200 zone allows buildings up to 30 feet (with additional standards above 30 feet), and R-8,400/R-9,600 zones are similar. SCC 30.23.050(3) requires height to be measured as the vertical distance from average final grade to the highest point of the roof surface, using the roof-type midpoints in the figures. Numerous features are exempt from the maximum, including chimneys, spires, belfries, water towers, flag poles, and antenna masts, provided they are set back at least 50 feet from adjoining lot lines.
Exceeding the zone height limit without an approved exception or variance is a zoning violation; PDS may deny or revoke permits and require correction.
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See how Lynnwood's structure height limits rules stack up against other locations.
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