

ADUs are allowed in MantiTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Manti, UT
Is your property eligible for an ADU?
# of Properties
21
Zoning districts
3
Zoning Districts:
61 parcels · 3 districts
R-1
66%(40)
I-2
31%(19)
C-2
3%(2)
ADU Rules
What can you build in Manti, UT?
Manti, 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
Interior / Attached ADU Size Limits
- –Maximum size of 50% of the gross square footage of the single-family dwelling for an internal or attached ADU
Detached ADU Size Limits
- –Maximum detached ADU size of 650 sq ft
Max Units
- –1 ADU per single-family lot; duplex, multifamily, and JADU: none specified
Owner Occupancy
- –Owner-occupant must live on the property, principal or ADU.
Parking
- –1 space per ADU vehicle; no max; primary-residence parking must also be on the same lot
Rental Restrictions
- –Short-term rentals (<30 days) prohibited unless compliant with the Short-Term Rental ordinance; cannot rent both the primary residence and the ADU—an owner-occupant must reside in one unit.
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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Is your property eligible for an ADU?
ADU rules in other Utah municipalities
Rules change at the town line. Check the municipality your property is actually in.
Sanpete County