ADUs are allowed in Unincorporated BerkeleyTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Berkeley, SC
Is your property eligible for an ADU?
# of Properties
5
Zoning districts
45
Zoning Districts:
77,613 parcels · 45 districts
FLEX1
33%(25,900)
PD-MU
26%(19,997)
R1
22%(16,766)
R2
10%(7,978)
Other
9%(6,972)
ADU Rules
What can you build in Unincorporated Berkeley, SC?
Unincorporated Berkeley, SC follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum size of 25% of the primary dwelling’s heated floor area (Flex1 Agricultural District).
- –Maximum size cap of 850 sq ft (Flex1 Agricultural District).
Detached ADU Size Limits
- –Maximum size of 25% of the primary dwelling’s heated square footage
- –Absolute maximum size of 850 sq ft
Max Units
- –1 ADU per platted lot
Parking
- –1 space per 1-bedroom ADU; 2 spaces per 2+ bedroom ADU; no maximum; off-site parking allowed within 600 ft with a safe pedestrian link; up to 50% may be shared with another use; area in front of a garage cannot count; applies countywide parking schedule.
Rental Restrictions
- –Detached ADU cannot be rented; short-term rentals prohibited.
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.
Berkeley County