ADUs are allowed in BooneTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Boone, NC
Is your property eligible for an ADU?
# of Properties
2,412
Owner-occupied
56%
Zoning districts
23
Avg Home Value
$583,461
Median Lot Size
0.36 acres
Avg Income
$40,625
Residential Types:
2,412 housing units
Single Family
65%
2-3 Family
4%
Apts (4+ units)
15%
Other
16%
Zoning Districts:
3,465 parcels · 23 districts
R1
47%(1,637)
B3
18%(612)
R3
11%(392)
R1A
5%(162)
Other
19%(662)
ADU Rules
What can you build in Boone, NC?
Boone, 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 for an internal/attached ADU: 800 sq ft cap
- –Maximum size for an internal/attached ADU: 50% of the primary residence floor area
Detached ADU Size Limits
- –Maximum size of 600 sq ft for a detached accessory dwelling unit (backyard cottage).
- –Maximum size of 50% of the floor area of the primary residence for a detached accessory dwelling unit (backyard cottage).
Max Units
- –1 single-family dwelling + 1 ADU per single-family lot
Owner Occupancy
- –Owner must reside in either unit at least 90%.
Parking
- –1 space/ADU; max 1.2 spaces (120%) unless higher max approved; B1 Downtown Core District exempt from Article 24 parking requirements (not applicable to multi-family or small hotels); ADU parking must be off-street to the side or rear of the primary residence; front-yard conversion to parking is prohibited; no separate driveway for the ADU.
Rental Restrictions
- –Short-term/vacation rentals allowed; cannot rent both units to different parties under separate contracts. In B1/B2/B3 districts, vacation rentals allowed only if the dwelling existed by 1/1/2014. If the owner does not reside as required, occupancy must be under a Town-filed written lease with noise/occupancy compliance; no unleased occupancy.
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.
Watauga County