Building Setbacks & Zoning in Walla Walla County, WA (2026)
3 rules for unincorporated Walla Walla County, Washington.
Verified from official government sources
Setback Rules
Minimum yard setbacks in unincorporated Walla Walla County are set zone by zone in the WWCC § 17.18.020 dimensional table. Single Family Residential R-60 lots require a fifteen-foot front, five-foot side and twenty-foot rear setback, while agricultural zones require thirty feet front and ten feet side. Any building that houses domestic animals or produces offensive noise, odor or glare must sit back seventy-five feet from the front and fifty feet from side and rear lines.
Yard Setback Minimums, Walla Walla County
Some RestrictionsWalla Walla County Code § 17.18.020
Zone Size Width (feet) Front Side Rear ... Single Family Residential R-60 6,000 square feet 50 3.0 15 5 20(7) 40(11) 35 ... 2.Buildings housing domestic animals or any use that produces offensive noise, vibration, smoke, dust, odors, heat or glare shall maintain a seventy-five feet front yard setback and fifty feet side and rear yard setbacks.
Structure Height Limits
In unincorporated Walla Walla County, residential building height tops out at 35 feet in most single-family and rural zones, rising to 50 feet in the Multiple Family Residential zone, under the dimensional standards table in WWCC 17.18.020. Barns and other agricultural structures carry no height limit at all.
Walla Walla County Structure Height Limits
Some RestrictionsWalla Walla County Code § 17.18.020
17.18.020 - Table of density and dimensional requirements. ... Requirements 8,22,26 Residential Density per Acre 15, 16,17 Minimum Setback Requirements (in feet) 22 Maximum Coverage (in percent) Maximum Height (in feet) Zone Size Width (feet) Front Side Rear ... Suburban Residential R-96 9,600 square feet 75 3.0 20 10(7) 20(7) 35 35 Single Family Residential R-72 7,200 square feet 50 3.0 20 5 ...
Lot Coverage Limits
In unincorporated Walla Walla County, lot coverage caps run by zoning district under the density and dimensional requirements table at WWCC § 17.18.020. Single Family Residential R-72 lots cap building coverage at forty percent, rising to forty-five percent under footnote eleven when a two-family dwelling is built. Rural and agricultural zones outside urban growth areas carry no numeric coverage limit at all.
Max Lot Coverage Limits, Walla Walla County
Some RestrictionsWalla Walla County Code § 17.18.020
Requirements 8,22,26 Residential Density per Acre 15, 16,17 Minimum Setback Requirements (in feet) 22 Maximum Coverage (in percent) Maximum Height (in feet) Zone Size Width (feet) Front Side Rear ... Single Family Residential R-72 7,200 square feet 50 3.0 20 5 20(7) 40(11) 35 ... 11.Forty-five percent allowed with a two-family dwelling unit.
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