ADUs are allowed in Unincorporated GallatinTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Gallatin, MT
Is your property eligible for an ADU?
# of Properties
127
Owner-occupied
12%
Zoning districts
2
Avg Home Value
$1,386,588
Median Lot Size
0.14 acres
Avg Income
$109,949
Residential Types:
127 housing units
Single Family
9%
Apts (4+ units)
78%
Other
13%
Zoning Districts:
2 parcels · 2 districts
PLI
50%(1)
RA
50%(1)
ADU Rules
What can you build in Unincorporated Gallatin, MT?
Unincorporated Gallatin, 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
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
Bear CanyonBig SkyBozemanBozeman PassBridger CanyonEast GallatinFour CornersGallatin County / Bozeman AreaHebgen LakeHyaliteMiddle CottonwoodNorth GallatinReese CreekRiver RockSouth Cottonwood CanyonSouth GallatinSpringhillSypes Canyon 1Sypes Canyon 2Trail CreekWheatland HillsZoning District 1Zoning District 6