ADUs are allowed in LewisvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Lewisville, NC
Is your property eligible for an ADU?
# of Parcels
6,122
Zoning districts
34
Avg Parcel Value
$374,505
Median Parcel Size
0.55 acres
Zoning Districts:
6,156 parcels · 34 districts
RS20
46%(2,838)
RS9
25%(1,547)
RS30
10%(602)
RS9-S
3%(211)
Other
16%(958)
ADU Rules
What can you build in Lewisville, NC?
Lewisville, 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 of 576 sq ft by right; otherwise up to the lesser of 5% of lot area and 50% of the principal dwelling’s heated floor area.
Detached ADU Size Limits
- –Maximum size is the greater of 576 sq ft or 5% of lot area, but not more than 50% of the principal residence’s heated floor area.
Max Units
- –Max 1 ADU/lot (YR, AG, RS-40/30/20/12/9).
- –0 if principal is a manufactured home.
- –0 in RM-5/8/12, MH, and nonresidential.
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –1 space/ADU; max 125% of required (APP may apply); ADU and principal unit share driveway; parking on same zoning lot; on-street/off-site credits and admin adjustments (up to 10% reductions or up to 10% above max in limited cases).
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.
Forsyth County