Building Setbacks & Zoning in Seattle, WA (2026)
3 verified building setbacks & zoning rules for Seattle, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
Seattle enforces specific yard setback requirements under SMC Title 23 that vary by zone, with the 2025 NR zoning reclassification establishing standardized setbacks of 5 feet on sides and 20 to 25 feet in front for residential zones.
Seattle Property Setback Requirements
Heavy RestrictionsStructure Height Limits
Seattle imposes building height limits by zone under SMC Title 23, with residential NR zones limited to 30 feet plus rooftop features, and commercial/mixed-use zones allowing greater heights depending on density targets.
Seattle Structure Height Limits
Heavy RestrictionsLot Coverage Limits
Seattle limits the percentage of a lot that can be covered by structures under SMC Title 23, with NR3 residential zones allowing up to 35 percent lot coverage for the principal structure plus additional allowances for accessory structures.
Seattle Maximum Lot Coverage Limits
Heavy RestrictionsLooking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Seattle city rules.
Building Setbacks & Zoning in King County →