

ADUs are allowed in Santa ClaraTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Santa Clara, UT
Is your property eligible for an ADU?
# of Properties
3,971
Owner-occupied
60%
Zoning districts
11
Avg Home Value
$381,606
Median Lot Size
0.25 acres
Avg Income
$97,234
Residential Types:
3,971 housing units
Residential-Pri
100%
Zoning Districts:
4,344 parcels · 11 districts
R-1-10
48%(2,079)
PDR
34%(1,478)
R-1-10/ML
8%(357)
RA
7%(305)
Other
3%(125)
ADU Rules
What can you build in Santa Clara, UT?
Santa Clara, 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
Interior / Attached ADU Size Limits
- –Maximum size for an attached ADU is the lesser of 1,000 sq ft or 50% of the main dwelling, but not below 800 sq ft.
Detached ADU Size Limits
- –Maximum detached ADU size: 1,000 sq ft on lots at or below 5,500 sq ft; 1,200 sq ft on larger lots.
Max Units
- –SF: 1 detached + 1 converted + (1 JADU or 1 attached) per lot.
- –MF/MU: up to 2 detached + internal ADUs <=25% of existing units (min 1) per lot.
- –SB 9 split: max 2 dwellings total per parcel (incl. ADUs/JADUs).
Owner Occupancy
- –No owner-occupancy is required for ADUs.
Parking
- –0 spaces; no extra off-street parking for ADUs/JADUs. If the primary dwelling's garage/carport/parking is demolished or converted, those spaces need not be replaced; replacement parking for converted ADUs may be in any configuration on the same parcel.
Rental Restrictions
- –ADUs/JADUs must be rented for more than 30 days; short-term rentals (30 days or fewer) prohibited
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.
Washington County