ADUs are allowed in Unincorporated San JuanTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated San Juan, UT
Is your property eligible for an ADU?
# of Parcels
8,373
Zoning districts
15
Avg Parcel Value
$154,783
Median Parcel Size
10.27 acres
Zoning Districts:
8,279 parcels · 15 districts
A-1
61%(5,023)
CD-C
11%(920)
CD-H
11%(879)
MU-1
7%(620)
Other
10%(837)
ADU Rules
What can you build in Unincorporated San Juan, UT?
Unincorporated San Juan, UT follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Detached ADU Size Limits
- –Maximum size of 1,200 sq ft for a detached accessory dwelling unit.
- –Maximum size of 50% of the primary dwelling’s square footage (uses habitable area when available).
Parking
- –1 space/ADU; on the same lot; space may be in a private garage or an area reserved for a future garage; no ADU-specific reductions or transit waivers
Rental Restrictions
- –Short-term rentals (<30 days) prohibited unless specifically permitted.
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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ADU rules in other Utah municipalities
Rules change at the town line. Check the municipality your property is actually in.
San Juan County