ADUs are allowed in TrinityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Trinity, NC
Is your property eligible for an ADU?
# of Properties
4,488
Owner-occupied
76%
Zoning districts
25
Avg Home Value
$189,722
Median Lot Size
0.59 acres
Avg Income
$75,007
Residential Types:
4,488 housing units
Single Family
74%
2-3 Family
1%
Apts (4+ units)
1%
Other
24%
Zoning Districts:
4,890 parcels · 25 districts
RR
51%(2,479)
UR
17%(842)
RA
16%(763)
UR-CZ
4%(216)
Other
12%(590)
ADU Rules
What can you build in Trinity, NC?
Trinity, 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 is 50% of the principal dwelling’s finished (habitable) floor area.
- –Absolute maximum size of 1,500 sq ft for an internal/attached ADU.
Detached ADU Size Limits
- –Maximum size is 50% of the principal dwelling’s finished floor area.
- –Maximum size of 1,500 sq ft.
Max Units
- –1 ADU per zoning lot for single-family detached (attached or detached).
- –Exclusive access easement: max 1 SF dwelling and 1 ADU.
Parking
- –1 space/ADU; max not specified; no waivers or proximity-based exceptions
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.
Randolph County