ADUs are allowed in Cottonwood HeightsTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Cottonwood Heights, UT
Is your property eligible for an ADU?
# of Properties
11,138
Owner-occupied
80%
Zoning districts
25
Avg Home Value
$844,529
Median Lot Size
0.23 acres
Avg Income
$133,515
Residential Types:
11,138 housing units
Single Family
99%
Zoning Districts:
12,697 parcels · 25 districts
R-1-8
70%(8,891)
RM
7%(870)
R-2-8
7%(864)
RR-1-21
5%(607)
Other
12%(1,465)
ADU Rules
What can you build in Cottonwood Heights, UT?
Cottonwood Heights, 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: Conditional Use Permit
Detached ADU Size Limits
- –Maximum detached ADU floor area is 70% of the primary dwelling’s floor area; does not apply in rural residential zones.
Max Units
- –1 total ADU per lot (single-family detached; internal or detached, not both). Duplex or multifamily lots: ADUs not permitted.
Owner Occupancy
- –Owner must permanently occupy either the primary dwelling or ADU.
Parking
- –Internal ADU: 1 space/ADU (min 3 total off-street spaces on the property, in addition to primary dwelling parking); Detached ADU: 2 spaces/ADU (in addition to primary dwelling parking); tandem spaces not allowed; no front-yard spaces for a detached ADU; displaced parking must be replaced if an internal ADU uses a garage/carport.
Rental Restrictions
- –ADUs shall not be used as short-term rentals (<30 days).
- –Internal ADU must be a long-term rental (30+ days).
- –Owner must occupy either the primary dwelling or the ADU and at no time receive rent for the owner-occupied unit.
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.
Salt Lake County