

ADUs are allowed in River RockTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for River Rock, MT
Is your property eligible for an ADU?
# of Properties
93
Owner-occupied
49%
Avg Home Value
$628,508
Median Lot Size
0.11 acres
Avg Income
$88,155
Residential Types:
93 housing units
Single Family
69%
Apts (4+ units)
31%
ADU Rules
What can you build in River Rock, MT?
River Rock, 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 CreekSouth Cottonwood CanyonSouth GallatinSpringhillSypes Canyon 1Sypes Canyon 2Trail CreekUnincorporated GallatinWheatland HillsZoning District 1Zoning District 6