Building Setbacks & Zoning in Auburn, WA (2026)
3 verified building setbacks & zoning rules for Auburn, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
Auburn's residential setback table, ACC 18.07.030(E), sets a 35-foot front setback in RC and R-1, dropping to 10 feet in R-2, with rear setbacks from 10 to 35 feet and interior side setbacks from 5 to 20 feet depending on zone, plus a 20-foot garage setback from street access citywide.
Auburn Residential Yard Setback Minimums
Some RestrictionsACC 18.07.030(E)
E | Minimum setbacks (feet) ... 1 | Residence front setback | 35 | 35 | 10 | 10(9) | None | None | 10(9) ... 2 | Garage (minimum front setback required from street access) | 20 | 20 | 20 | 20 | 20 | 20 | 20 unless alley-loaded then 15 provided there are 20 feet from any garage ... 5 | Interior side setback | 20 | 10 | 5 | 5 | 5 | 5 | 5 ... 6 | Street side setback | 35 | 20 | 10 | 10 | 10 | 10 |...
Structure Height Limits
Auburn's residential zoning table caps a house at 35 feet in the RC and R-1 zones, rising to 45 feet in R-3 and R-F, and up to 75 feet in the denser R-4 and R-NM zones. The limit is measured under ACC 18.07.030 and applies to the main building, not accessory structures.
Auburn Residential Building Height Limits
Some RestrictionsACC 18.07.030 Table 18.07.030 (Standard G); ACC 18.31.030
G | Maximum building height (feet) | RC 35 | R-1 35 | R-2 35 | R-3 45 | R-4 75 | R-NM 75 | R-F 45 ... 4Barns and other specialized structures used for agricultural purposes may exceed the height limits. ... 18.31.030 Height limitations – Exceptions. The following buildings and/or structures are exempt from the height requirements of this title; in no case does this lessen any height restriction...
Lot Coverage Limits
Auburn caps how much of a residential lot can be covered by buildings, driveways and other hard surfaces through a maximum impervious area percentage that varies by zone. The limit runs from a strict 25 percent in the Residential Conservancy zone up to 90 percent in the densest R-4 and R-NM zones.
Auburn Residential Impervious Area Limits
Some RestrictionsACC 18.07.030 (Table 18.07.030, Row F)
18.07.030 Development standards. Standard: RC | R-1 | R-2 | R-3 | R-4 | R-NM | R-F... F | Maximum impervious area (%) | 25 | 50 | 75 | 80 | 90 | 90 | 75
Looking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Auburn city rules.
Building Setbacks & Zoning in King County →