

ADUs are allowed in Unincorporated GraniteTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Granite, MT
Is your property eligible for an ADU?
# of Properties
14
ADU Rules
What can you build in Unincorporated Granite, MT?
Unincorporated Granite, MT 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
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Rental Restrictions
- –Detached ADU (Guest House): renting prohibited; short- and long-term rentals barred
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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