

ADUs are allowed in TremontonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Tremonton, UT
Is your property eligible for an ADU?
# of Parcels
4,979
Zoning districts
33
Median Parcel Size
0.23 acres
Zoning Districts:
5,065 parcels · 33 districts
R1-8
25%(1,290)
R1-10
18%(900)
CD
9%(450)
RM-16
9%(437)
Other
39%(1,988)
ADU Rules
What can you build in Tremonton, UT?
Tremonton, 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 size must be less than the principal dwelling’s gross floor area
Max Units
- –Single-family: 1 IADU + 1 DADU per parcel (2 ADUs max)
- –Multifamily: 0 ADUs per parcel
- –PUD: 1 IADU + 1 DADU per parcel (same as single-family)
Owner Occupancy
- –Owner must occupy the property as a full-time resident
Parking
- –1 space per ADU; +1 space if 2+ bedrooms; independent from principal dwelling's parking; alley access allowed (city not snow-cleared); spaces must be hard-surfaced with rear/side-of-lot priority.
Rental Restrictions
- –ADUs shall only be rented or leased.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
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.
Box Elder County