

ADUs are allowed in American ForkTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for American Fork, UT
Is your property eligible for an ADU?
# of Properties
12,027
Owner-occupied
74%
Zoning districts
31
Avg Home Value
$641,445
Median Lot Size
0.20 acres
Avg Income
$108,623
Residential Types:
12,027 housing units
Single Family
68%
2-3 Family
2%
Apts (4+ units)
3%
Other
28%
Zoning Districts:
15,627 parcels · 31 districts
R1-9000
27%(4,203)
R2-7500
12%(1,866)
TOD
12%(1,828)
PR-3.0
11%(1,657)
Other
39%(6,073)
ADU Rules
What can you build in American Fork, UT?
American 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: Conditional Use Permit
Interior / Attached ADU Size Limits
- –Maximum size of 1,100 sq ft
Detached ADU Size Limits
- –Maximum detached ADU size of 1,100 sq ft
Max Units
- –Single-family: 1 accessory apartment per lot
- –Multifamily: 0 ADUs
Owner Occupancy
- –Owner must reside full-time in the main dwelling or ADU
Parking
- –2 off-street spaces per ADU (in addition to 2 for the SFR); exceptions: no front/side-yard parking except in an approved driveway; tandem parking allowed in driveways; ADU not permitted if requirements cannot be met.
Rental Restrictions
- –ADUs may be rented only with approval of a conditional use permit and business license.\nAccessory apartments shall only be rented (not for sale).\nShort-term rentals less than two consecutive overnights prohibited; STRs require owner-occupancy, a business license, and room tax.
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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