ADUs are allowed in OremTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Orem, UT
Is your property eligible for an ADU?
# of Properties
24,677
Owner-occupied
70%
Zoning districts
71
Avg Home Value
$597,738
Median Lot Size
0.20 acres
Avg Income
$94,775
Residential Types:
24,677 housing units
Single Family
69%
2-3 Family
2%
Apts (4+ units)
4%
Other
25%
Zoning Districts:
31,267 parcels · 71 districts
R8
51%(16,100)
R7.5
11%(3,328)
R6.5
7%(2,308)
C2
4%(1,168)
Other
27%(8,363)
ADU Rules
What can you build in Orem, UT?
Orem, 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
Interior / Attached ADU Size Limits
- –Maximum size of 900 sq ft for an in-home apartment within a townhouse.
Detached ADU Size Limits
- –Detached backyard cottages are not allowed in residential zones; maximum size is 0 sq ft.
- –Detached backyard cottages are not allowed on single-family lots; maximum size is 0 sq ft.
Max Units
- –1 ADU per owner-occupied detached single-family dwelling
- –1 ADU per townhouse (owner-occupied; only if designated at original construction)
- –0 ADUs in R5/PRD zones; detached ADUs not allowed; duplex/multifamily not allowed unless designated by ordinance
Owner Occupancy
- –Accessory units must be owner-occupied; 3-year absence allowed.
Parking
- –1 space/ADU; max not specified. In R5/R6/R6.5/R7.5/R8/R12/R20, the primary dwelling must have 2 spaces (total often 3). Exceptions: no front-yard setback; must be paved; garage/carport counts only if >2 spaces or widened 8'×16' driveway that doesn't block access; standard driveway to garage/carport doesn't count.
Rental Restrictions
- –Detached ADU not permitted to exist or be rented.
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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