

ADUs are allowed in CornishTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Cornish, UT
Is your property eligible for an ADU?
# of Properties
62
Owner-occupied
77%
Zoning districts
6
Avg Home Value
$400,270
Median Lot Size
0.57 acres
Avg Income
$93,250
Residential Types:
62 housing units
Land Residential
100%
Zoning Districts:
233 parcels · 6 districts
AG
77%(180)
A10
11%(26)
RES
9%(22)
A-10
1%(2)
Other
1%(3)
ADU Rules
What can you build in Cornish, UT?
Cornish, 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: Not permitted
Max Units
- –Single-family (Ag/Res): 1 accessory apartment per lot
- –Commercial & Manufacturing: 0 per lot
Owner Occupancy
- –Owner must live in the single-family dwelling
Parking
- –Min 3 off-street hard-surface spaces for the ADU; no max stated; spaces must be 9' x 20' and not exceed 25% of front/side yards
Rental Restrictions
- –A conditional use permit is required to rent an ADU.
- –Owner must occupy at least one unit; cannot rent both units.
- –CUP ends on sale unless renewed; one year of non-use terminates rental, reverting to single-family.
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.
Cache County