ADUs are allowed in Black MountainTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Black Mountain, NC
Is your property eligible for an ADU?
# of Properties
4,250
Owner-occupied
52%
Zoning districts
22
Avg Home Value
$435,683
Median Lot Size
0.30 acres
Avg Income
$78,273
Residential Types:
4,250 housing units
Single Family
70%
2-3 Family
2%
Apts (4+ units)
2%
Other
26%
Zoning Districts:
5,238 parcels · 22 districts
UR-8
48%(2,507)
TR-4
18%(942)
CR-1
12%(611)
HB-8
5%(275)
Other
17%(903)
ADU Rules
What can you build in Black Mountain, NC?
Black Mountain, NC 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
Interior / Attached ADU Size Limits
- –Maximum size cap of 1,100 sq ft for an internal accessory dwelling unit.
- –Maximum size limited to 50% of the livable area of the primary dwelling.
Detached ADU Size Limits
- –Maximum size of 1,100 sq ft for a detached secondary dwelling.
- –Maximum size of 50% of the primary home's livable area for a detached secondary dwelling.
Max Units
- –1 ADU per zoning lot
Parking
- –2 spaces/ADU; off-street parking not required in the CB; on-street parking may count only with a Special Use Permit or if the ADU is within CB; residential parking may be modified by a Special Use Permit
ADU State Law
What can you build in North Carolina?
- –North Carolina does not have a statewide ADU mandate; ADU rules are set by individual municipalities.
- –Building/fire codes are set statewide, but whether an ADU is allowed is local zoning.
- –There is active proposed legislation (H627 / S495, "Regulation of Accessory Dwelling Units") that would create G.S. 160D-917 and require local governments to allow at least one ADU in certain single-family areas, but it is not enacted.
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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ADU rules in other North Carolina municipalities
Rules change at the town line. Check the municipality your property is actually in.
Buncombe County