

ADUs are allowed in DeweyvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Deweyville, UT
Is your property eligible for an ADU?
# of Parcels
329
Zoning districts
5
Median Parcel Size
2.05 acres
Zoning Districts:
336 parcels · 5 districts
RR-35
41%(139)
RR-5
35%(116)
A-40
17%(58)
AG-40
7%(22)
Other
0%(1)
ADU Rules
What can you build in Deweyville, UT?
Deweyville, 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
Detached ADU Size Limits
- –Maximum size for a detached ADU (backyard cottage) is 1,200 sq ft; applies in residential and agricultural zones.
Max Units
- –1 internal/attached ADU per single-family house
- –A-40 & AG-40 zones: 1 per detached single-family dwelling
Owner Occupancy
- –Owner must occupy at least one ADU unit.
Parking
- –1 space/ADU; Planning Commission may reduce with a traffic/parking study; internal ADUs require 1 space
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.
Box Elder County