

ADUs are allowed in Castle ValleyTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Castle Valley, UT
Is your property eligible for an ADU?
# of Parcels
440
Zoning districts
4
Avg Parcel Value
$248,011
Zoning Districts:
440 parcels · 4 districts
RAR-1
99%(434)
RG-15
1%(3)
BLM
0%(2)
RAG
0%(1)
ADU Rules
What can you build in Castle Valley, UT?
Castle Valley, 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: Not permitted
Max Units
- –1 IADU per lot (within primary dwelling footprint). Detached ADUs prohibited. 1 IADU + 1 TAD may be located on the same legally platted lot with the dwelling.
Owner Occupancy
- –Owner of record must occupy the primary dwelling as primary residence
Rental Restrictions
- –Detached ADUs are prohibited, so renting a detached ADU is not permitted; short-term rentals (<30 days) are prohibited townwide. IADUs are strictly prohibited for non-full-time-owner-residents; if rented, IADUs may not be rented for less than 30 days.
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.
Grand County