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ADUs are allowed in Four Corners
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Four Corners, MT

Is your property eligible for an ADU?

# of Properties
24
Zoning districts
7
Zoning Districts:
2,959 parcels · 7 districts
RR/A
66%(1,964)
C
16%(476)
MU
16%(473)
LDRR/A
1%(39)
Other
0%(7)

ADU Rules

What can you build in Four Corners, MT?

Four Corners, MT follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Max Units

  • RR/A, LDRR/A, NC: 2 ADUs per lot; MU, C: none specified; PLI: 0 per lot

Rental Restrictions

  • Short-term rentals (<28 days) allowed only where permitted/conditional; must comply with §9.2.9; owner must be the primary resident and on-site during guest stays.

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 Montana municipalities

Rules change at the town line. Check the municipality your property is actually in.

Gallatin County

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