

ADUs are allowed in LehiTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Lehi, UT
Is your property eligible for an ADU?
# of Properties
26,708
Owner-occupied
73%
Zoning districts
33
Avg Home Value
$639,341
Median Lot Size
0.18 acres
Avg Income
$135,453
Residential Types:
26,708 housing units
Single Family
70%
Apts (4+ units)
1%
Other
29%
Zoning Districts:
34,699 parcels · 33 districts
PC
31%(10,730)
R-3
11%(3,881)
R-1-8
11%(3,819)
RA-1
9%(3,116)
Other
38%(13,153)
ADU Rules
What can you build in Lehi, UT?
Lehi, 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 finished living area for a detached accessory dwelling unit is 1,300 sq ft
Max Units
- –1 ADU per lot
Owner Occupancy
- –Owner must live in the primary residence with the ADU.
Parking
- –Attached/internal ADU: 1 off-street space; Detached ADU: 2 off-street spaces (in addition to primary dwelling parking).
Rental Restrictions
- –Short-term rentals 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.
Utah County