Accessory Structures in Orangeburg County, SC (2026)
4 rules for unincorporated Orangeburg County, South Carolina.
Verified from official government sources
ADU Rules
In unincorporated Orangeburg County, accessory dwelling units are a conditional use under Zoning Ordinance Section 3.22, allowed only where Table 1 permits them for the district. Owners can add just one ADU per lot, capped at two stories or the height of the principal house, with floor area that cannot exceed the main dwelling and at least one parking space required per unit.
Orangeburg County ADU Zoning Rules
Some RestrictionsOrangeburg County Zoning Ordinance § 3.22(a), (c)-(f)
This section applies to any buiiding or portion of a building, including the principal building, used as a dwelling unit and which is additional to the use of a principal building. ... a)Not more than one (1) accessory dwelling unit may be established on a lot, where permitted by Table 1. ... c)One (1) detached accessory dwelling unit in addition to other permitted detached accessory structures...
ADU Owner Occupancy
An accessory dwelling unit in unincorporated Orangeburg County can only be built on a lot with a single-family, owner-occupied principal dwelling. Zoning Ordinance Section 3.22(b) ties the ADU privilege to owner occupancy, and companion clauses require a complete living space with its own kitchen and bath, independent utilities if detached, and a 20-foot setback from the main house.
Orangeburg County ADU Owner-Occupancy Rule
Some RestrictionsOrangeburg County Zoning Ordinance § 3.22(b), (g)-(i)
b)An accessory dwelling unit may be accessory only to a single-family, owner-occupied dwelling. ... g)The accessory dwelling unit must be a complete living space, with kitchen and bathroom facilities separated from the principal unit.h)Detached accessory dwelling units must have an independent water source and an independent wastewater system from the principal structure, or a system approved b...
ADU Rental Restrictions
Unincorporated Orangeburg County flatly bars renting out an accessory dwelling unit as a residential unit. Zoning Ordinance Section 3.22 says ADUs "may not be rented as residential units," reserving them for occupants tied to the principal household rather than as a separate income property, even where an ADU is otherwise conditionally permitted under Table 1.
Orangeburg County ADU No-Rental Rule
Heavy RestrictionsOrangeburg County Zoning Ordinance § 3.22
This section applies to any buiiding or portion of a building, including the principal building, used as a dwelling unit and which is additional to the use of a principal building. Accessory dwelling units (ADUs) may not be rented as residential units.
Shed & Carport Rules
In unincorporated Orangeburg County, an accessory shed, workshop or storage building must sit outside the required front, side and corner-lot building lines and keep at least three feet from the rear property line under Table 6 of the Zoning Ordinance. A shed inside a required setback area is capped at 12 feet in height, and it cannot be a shipping container or manufactured home.
Shed Setbacks in Orangeburg County
Some RestrictionsOrangeburg County Zoning Ordinance § 7.2 (Table 6) and § 7.5
Accessory Uses Required Setback Area Front Side Corner Lot Rear ... Auxiliary Shed, Workshop, Storage Building, etc. BL BL BL 3' ... BL = Required Building Line for principal use. ... Section 7.5. - Accessory Buildings and Uses. 1.No mobile or manufactured home or shipping container shall be used as an accessory building.2.If located within the buildable area, accessory buildings shall observe ...
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