ADUs are allowed in Mount AiryTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Mount Airy, NC
Is your property eligible for an ADU?
# of Parcels
5,741
Zoning districts
23
Avg Parcel Value
$272,565
Median Parcel Size
0.49 acres
Zoning Districts:
5,749 parcels · 23 districts
R6
31%(1,778)
R8
25%(1,460)
R20
21%(1,209)
B4
5%(307)
Other
17%(995)
ADU Rules
What can you build in Mount Airy, NC?
Mount Airy, 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 50% of the principal dwelling’s conditioned (heated) floor area
- –Maximum size of 1,000 sq ft of gross floor area
Detached ADU Size Limits
- –Maximum size of 50% of the principal dwelling’s conditioned (heated) floor area.
- –Maximum size of 1,000 sq ft of gross floor area.
Max Units
- –1 ADU per single-family lot
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.
Surry County