

ADUs are allowed in Holly SpringsTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Holly Springs, NC
Is your property eligible for an ADU?
# of Properties
15,910
Owner-occupied
85%
Zoning districts
41
Avg Home Value
$612,988
Median Lot Size
0.23 acres
Avg Income
$141,022
Residential Types:
15,910 housing units
Single Family
99%
Other
1%
Zoning Districts:
17,979 parcels · 41 districts
SR
24%(4,331)
NR-CD
10%(1,887)
SR-CD
10%(1,857)
PUD-16
10%(1,837)
Other
45%(8,067)
ADU Rules
What can you build in Holly Springs, NC?
Holly Springs, 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 1,000 sq ft
- –Maximum size of 50% of the primary dwelling’s finished floor area
Detached ADU Size Limits
- –Maximum size of 1,000 sq ft
Max Units
- –Temporary Family Health Care Structure ADU: 1 per lot
Owner Occupancy
- –Owner occupancy is not required for ADUs.
Parking
- –1 space/ADU; off-street space not required if on-street parking is approved by the jurisdiction; designated on-street frontage spaces may count toward the minimum
Rental Restrictions
- –Short-term rentals allowed but unlawful if there are more than 4 verified ordinance-violation complaints in 12 months or if the property is in the top 10% for crime/disorder. Short-Term Rental means renting for less than 1 month.
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.
Wake County