ADUs are allowed in WilmingtonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Wilmington, NC
Is your property eligible for an ADU?
# of Properties
33,825
Owner-occupied
66%
Zoning districts
27
Avg Home Value
$549,469
Median Lot Size
0.34 acres
Avg Income
$90,538
Residential Types:
33,825 housing units
Single Family
88%
Other
11%
Zoning Districts:
48,238 parcels · 27 districts
R-15
32%(15,223)
MD-17
10%(4,997)
R-7
8%(4,025)
R-5
8%(3,908)
Other
42%(20,085)
ADU Rules
What can you build in Wilmington, NC?
Wilmington, 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 1,200 sq ft
- –Maximum size of 50% of the principal dwelling’s gross floor area
Detached ADU Size Limits
- –Maximum size of 1,200 sq ft
- –Maximum size of 50% of the principal structure’s gross floor area
Max Units
- –1 ADU per single-family lot (detached or attached); 0 ADUs for duplex/multifamily; only 1 ADU among a maximum of 2 accessory structures
Parking
- –0 space/ADU; no maximum; no separate ADU parking ratio (detached); exceptions: none stated.
Rental Restrictions
- –Bed-and-breakfast lodging not allowed in an ADU; homestay allowed only if the ADU is the host’s principal residence and owner-operated.
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.
New Hanover County