ADUs are allowed in Unincorporated SumterTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Sumter, SC
Is your property eligible for an ADU?
# of Properties
6
Zoning districts
19
Zoning Districts:
37,929 parcels · 19 districts
AC
63%(23,781)
R-15
16%(5,908)
GR
12%(4,475)
R-9
5%(1,977)
Other
5%(1,788)
ADU Rules
What can you build in Unincorporated Sumter, SC?
Unincorporated Sumter, SC 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 ADU size of 1,000 sq ft
- –Maximum ADU size of 40% of the principal dwelling’s floor area
Detached ADU Size Limits
- –Maximum detached ADU size is the lesser of 1,000 sq ft or 40% of the principal dwelling’s floor area.
Max Units
- –1 accessory apartment per residential lot (single-family detached principal dwelling).
- –0 accessory apartments on lots with a manufactured home as the principal dwelling.
Owner Occupancy
- –Owner occupancy is not required.
Parking
- –1 off-street space per ADU; no max; may be in required yards but not bufferyards; CBD District: off-street parking not required.
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 South Carolina municipalities
Rules change at the town line. Check the municipality your property is actually in.
Sumter County