ADUs are allowed in St GeorgeTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for St George, UT
Is your property eligible for an ADU?
# of Properties
48,139
Owner-occupied
58%
Zoning districts
47
Avg Home Value
$398,335
Median Lot Size
0.18 acres
Avg Income
$89,648
Residential Types:
48,139 housing units
Other
100%
Zoning Districts:
57,836 parcels · 47 districts
PD-R
39%(22,611)
R-1-10
16%(9,367)
R-1-8
11%(6,480)
R-3
9%(5,282)
Other
24%(14,096)
ADU Rules
What can you build in St George, UT?
St George, UT follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Detached ADU Size Limits
- –Maximum size: detached ADU must be less than the gross floor area of the single-family dwelling.
Max Units
- –Single-family lots: 1 ADU/lot (citywide); 2 ADUs/lot in Downtown.
- –Duplex/multifamily lots: 0 ADUs.
Owner Occupancy
- –Owner-occupant must live on the property (primary or ADU)
Parking
- –1 space per ADU; tandem parking not allowed; if ADU is within an existing garage/carport, replace any lost parking for the primary dwelling on-site; off-street parking must be provided on-site when a building is erected or enlarged
Rental Restrictions
- –Short-term rentals prohibited; ADU may be rented only with a deed restriction ensuring the primary dwelling remains owner-occupied.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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Is your property eligible for an ADU?
ADU rules in other Utah municipalities
Rules change at the town line. Check the municipality your property is actually in.
Washington County