

ADUs are allowed in UnionvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unionville, NC
Is your property eligible for an ADU?
# of Properties
2,521
Owner-occupied
68%
Zoning districts
11
Avg Home Value
$384,985
Median Lot Size
1.31 acres
Avg Income
$88,648
Residential Types:
2,521 housing units
Residential
100%
Zoning Districts:
3,276 parcels · 11 districts
RA-40
91%(2,982)
R-40
5%(178)
RMD
1%(41)
CD
1%(22)
Other
2%(53)
ADU Rules
What can you build in Unionville, NC?
Unionville, NC follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Detached ADU Size Limits
- –Maximum ADU size cannot exceed the principal building’s total floor area (general accessory building cap).
Parking
- –1 space per ADU; flexibility by permit-issuing authority; joint-use or satellite parking with recorded agreements; visitor satellite spaces within 300 ft
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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Is your property eligible for an ADU?
ADU rules in other North Carolina municipalities
Rules change at the town line. Check the municipality your property is actually in.
Union County