Building Setbacks & Zoning in Washington County, UT (2026)
3 county-level rules, plus city-specific rules for 1 city in Washington County, Utah.
Verified from official government sources
Setback Rules
In Washington County's unincorporated R-2 and R-3 multiple-family zones, homes need a 40-foot lot width, a 25-foot front yard, and 10-foot side and rear yards. The front yard shrinks to 15 feet only if parking sits in the rear and the unit has a covered street-facing porch.
Yard Setbacks in Washington County's R-2/R-3 Zones
Some RestrictionsWashington County Code of Ordinances § 10-8F-6
10-8F-6: AREA, WIDTH AND YARD REGULATIONS: Zone Area Minimum Width Front Side Rear. R-2 8,000 sq. ft. 40' 25' (15' if parking in rear and each unit has a front porch facing street) 10' 10'. R-3 8,000 sq. ft. 40' 25' (15' if parking in rear and each unit has a Front porch facing street) 10' 10'. Note: 1. Each R-2, R-3, or townhouse front porch shall be covered, outside the front setback, and a m...
Structure Height Limits
In Washington County's SF Single-Family Residential zone, County Code § 10-8E-4 caps a main building at 35 feet and an accessory building at 25 feet. The RE Residential Estate zone carries the identical limits under § 10-8D-4, while the FR Forest Residential zone's § 10-8A-4 sets the same 35-foot cap but allows a conditional use permit to exceed it.
Residential Building Height Limits in Washington County
Some RestrictionsWashington County Code of Ordinances § 10-8E-4
10-8E-4: HEIGHT REGULATIONS: No building shall be erected to a height greater than thirty five feet (35'). No accessory building shall be erected to a height greater than twenty five feet (25').
Lot Coverage Limits
Washington County's commercial zones cap building footprint at a fixed share of the lot: County Code § 10-10-3 sets Maximum Lot Coverage at 60% in the C-1 and C-2 zones and 50% in C-3, with PDC left "TBD" for case-by-case review. The Manufacturing and Industrial zones share a flat 60% cap under § 10-11-3.
Maximum Lot Coverage Limits in Washington County
Some RestrictionsWashington County Code of Ordinances § 10-10-3, § 10-11-3
Min/ Maximum Height 8'/35' 8'/40' 8'/40' 8'/40' Maximum Structure Area 15,000 sf TBD TBD TBD Maximum Lot Coverage 60% 60% 50% TBD Street Frontage Requirement 100 feet 140 feet 140 feet 140 feet ... MFG IND Maximum Area of All Buildings and Structures 60% 60% Maximum Lot Coverage 60% 60%
Building Setbacks & Zoning by City in Washington County
1 cities in Washington County have their own building setbacks & zoning rules. Each link goes to that city's dedicated page with code citations.
All Washington County ordinances
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