ADUs are allowed in SimpsonvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Simpsonville, SC
Is your property eligible for an ADU?
# of Properties
9,671
Owner-occupied
79%
Zoning districts
18
Avg Home Value
$315,385
Median Lot Size
0.24 acres
Avg Income
$99,321
Residential Types:
9,671 housing units
Single Family
92%
Apts (4+ units)
1%
Condos
1%
Other
6%
Zoning Districts:
10,262 parcels · 18 districts
R-LO
34%(3,496)
ID
29%(2,995)
R-E
14%(1,478)
R-MID
7%(735)
Other
15%(1,558)
ADU Rules
What can you build in Simpsonville, SC?
Simpsonville, 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 internal or attached ADU size of 800 sq ft
- –Maximum internal or attached ADU size of 50% of the primary residence floor area
Detached ADU Size Limits
- –Maximum size is 50% of the primary residence’s square footage for a detached accessory dwelling unit.
- –Absolute maximum size of 800 square feet for a detached accessory dwelling unit.
Max Units
- –1 ADU per lot in PR district (attached or detached); ADUs not permitted in all other districts (PR2, HDR, OC, NC, LC, GC, IND)
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –2 off-street spaces/ADU (in addition to primary); none max; must use existing driveway; ADU cannot have its own driveway; on-street/parallel parking not counted; no administrative reductions.
Rental Restrictions
- –Short-term rentals prohibited; long-term rentals permitted
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.
Greenville County