ADUs are allowed in Mills RiverTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Mills River, NC
Is your property eligible for an ADU?
# of Properties
4,232
Owner-occupied
58%
Zoning districts
14
Avg Home Value
$391,128
Median Lot Size
0.91 acres
Avg Income
$110,778
Residential Types:
4,232 housing units
Single Family
66%
Apts (4+ units)
5%
Other
29%
Zoning Districts:
5,546 parcels · 14 districts
MR-MU
70%(3,884)
MR-30
13%(704)
MR-NC
7%(369)
R2R
3%(172)
Other
8%(417)
ADU Rules
What can you build in Mills River, NC?
Mills River, 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 of 1,000 sq ft for an internal ADU
- –Maximum 60% of the principal dwelling's gross floor area (GFA) for an internal ADU
Detached ADU Size Limits
- –Maximum detached ADU size of 1,000 sq ft (Mills River MR-RR).
- –Maximum detached ADU size of 60% of the principal dwelling gross floor area (Mills River MR-RR).
Max Units
- –1 ADU per lot (MR-RR), only on a lot containing a principal single-family dwelling unit.
Parking
- –1 space/ADU; MR-RR district only; must use the same private driveway as the principal dwelling; no waivers or transit-based reductions.
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.
Henderson County