ADUs are allowed in Spanish ForkTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Spanish Fork, UT
Is your property eligible for an ADU?
# of Properties
14,158
Owner-occupied
79%
Zoning districts
26
Avg Home Value
$516,380
Median Lot Size
0.19 acres
Avg Income
$110,264
Residential Types:
14,158 housing units
Single Family
75%
2-3 Family
1%
Apts (4+ units)
2%
Other
23%
Zoning Districts:
18,503 parcels · 26 districts
R-1-12
21%(3,905)
R-1-6
18%(3,326)
R-3
17%(3,221)
R-1-9
16%(3,004)
Other
27%(5,047)
ADU Rules
What can you build in Spanish Fork, UT?
Spanish Fork, 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
- –On lots under 1 acre, a detached ADU is limited to 1,000 sq ft; on lots 1 acre or larger, there is no ADU-specific size cap.
Max Units
- –Single-family: 1 ADU per lot (attached/internal or detached)
- –Duplex/multifamily: 0 ADUs
Owner Occupancy
- –Owner must reside on the property; temporary absences allowed after one year.
Parking
- –3-4 spaces (3 for internal ADU, 4 for external/detached); must meet §15.4.16.120; no tandem parking for ADUs.
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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