

ADUs are allowed in SalemTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Salem, UT
Is your property eligible for an ADU?
# of Properties
4,374
Owner-occupied
78%
Zoning districts
17
Avg Home Value
$604,497
Median Lot Size
0.27 acres
Avg Income
$121,942
Residential Types:
4,374 housing units
Single Family
81%
Apts (4+ units)
1%
Other
18%
Zoning Districts:
6,985 parcels · 17 districts
R-15
27%(1,870)
R-10
25%(1,723)
M-P-D
24%(1,701)
R-5
7%(512)
Other
17%(1,179)
ADU Rules
What can you build in Salem, UT?
Salem, 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 limited by combined area cap for all detached accessory buildings: 500 sq ft or 10% of lot area, whichever is greater.
Max Units
- –Single-family: 1 ADU/lot
- –Duplex/twin/townhome/multifamily: 0 ADUs
Owner Occupancy
- –Owner must reside on the property; suspensions allowed for temporary absences.
Parking
- –5 off-street spaces per single-family dwelling with an ADU; tandem parking allowed; any garage/carport spaces lost to an internal ADU must be replaced.
Rental Restrictions
- –Minimum rental term for an ADU: 30 consecutive days; short-term/vacation rentals (<30 days) 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.
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