Building permits, zoning and land rules in Jasper County, South Carolina

Unincorporated Jasper County requires a building permit for new construction, additions, alterations, repairs, roof replacement, electrical and plumbing work, heating and air-system installation, accessory structures, swimming pools, moving or demolishing structures, and manufactured-home installation¹. The stated exemptions cover residential accessory structures under 200 square feet, commercial accessory structures under 120 square feet, fences under 7 feet high and retaining walls under 4 feet high¹. Jasper County applies its adopted building codes throughout the unincorporated county and requires code inspections^1,7. Jasper County’s adopted residential and building codes are the 2021 editions with South Carolina modifications; the ordinance separately lists the 2020 electrical code and 2009 energy code⁷. The 2024 editions were adopted in 2025 and take effect for local jurisdictions on January 1, 2027, so ask Planning and Building which editions apply to a project spanning the change⁸. A qualifying owner-builder must personally appear and sign the permit application; the exemption applies to a one-family or two-family residence for the owner's use, subject to the other statutory conditions⁵.

Jasper County Planning and Building receives building applications, reviews construction documents and issues building permits; county building inspections depend on the work and applicable code^1,9. The office is in Room 202 at 358 Third Avenue in Ridgeland and can be reached at 843-717-3650¹. Residential applications require the building-permit application, zoning permit, septic or sewer approval, 911 address, 2 sets of construction documents or manufacturer installation instructions, and contractor contact information with South Carolina and Jasper County license numbers¹. All contractors and subcontractors must submit a Jasper County business license¹. Jasper County publishes a $200 manufactured-housing building-permit fee, a $125 residential plan-review fee when plans are required, and a $150 zoning-permit fee for a new structure¹. Other building fees depend on construction cost, square footage and construction type; Chapter 6 adds a $25 nonrefundable administrative fee per permit and a $50 inspection-only fee where applicable¹. Ask Planning and Building for the total project fee¹.

South Carolina DES permits onsite septic systems in Jasper County, and a home or manufactured home without public or community sewer must receive DES approval and an installation permit before Jasper County can issue the building permit^1,3. The DES Onsite Wastewater Program answers pre-application questions at 1-855-731-2504 or OSWWCentral@des.sc.gov¹⁰. DES cannot issue an onsite-wastewater permit where public sewer is accessible¹¹. A statewide septic permit to construct is good for 5 years, and renewal or changes need a new application and fee¹². After construction, a DES inspector returns to inspect the installation and issues approval to operate if the system meets South Carolina standards³. Only about 2.9% of Jasper County soils avoid a severe USDA limitation rating for a conventional drain field, so make septic feasibility an early purchase contingency and budget for the possibility of an alternative design¹³.

In unincorporated Jasper County, an RV may be used for temporary lodging for up to 7 days unless the county approves a Temporary Emergency Dwelling Permit, and permanent power will not be approved under the temporary-lodging rule⁴. A Temporary Emergency Dwelling Permit expires after 6 months, with one 6-month extension available⁴. The county also recognizes a temporary accessory dwelling during construction in specified circumstances, subject to the county code and a nonrefundable $100 temporary-use permit fee⁷. We could not confirm a separate tiny-home occupancy rule or a general minimum size for every dwelling type, so ask Planning and Building to verify the parcel's zoning, building, wastewater, utility and occupancy requirements¹. A residential-designed manufactured home must have at least 900 square feet of enclosed living area¹⁴. A new electrical connection cannot be made to a building or manufactured home that requires a permit until that permit is obtained⁷. In unincorporated Jasper County, a zoning certificate is also required before electric or gas utilities extend service to a site¹⁵.

1. Ask Jasper County Planning and Building to identify the zoning district, allowed residential use, access frontage and site standards^4,16.
2. Determine whether public sewer is accessible; if not, obtain South Carolina DES approval and a septic installation permit before seeking the county building permit^3,11.
3. Obtain the 911 address and assemble the building-permit application, zoning permit, wastewater approval, construction documents or manufacturer instructions, and contractor information¹.
4. Apply to Jasper County Planning and Building for the building and zoning permits¹. If the site is in a regulated floodplain, obtain the required development permit before beginning development¹⁷.
5. Schedule the required county building inspections and the DES septic inspection before the system is covered^1,3.
6. Obtain the zoning certificate before electric or gas service is extended, and obtain the Certificate of Use and Occupancy before occupying a new, converted, altered or enlarged building or premises in unincorporated Jasper County¹⁵. Occupancy approval requires water and sewer tap receipts and/or final septic approval, applicable FEMA elevation certificates and fee payment¹⁵.

Before buying in unincorporated Jasper County, confirm the zoning district and subdivision status, then resolve septic feasibility and well requirements^2,3,6,18. A building erected or moved must generally have at least 50 feet of access frontage to a public street, right-of-way or private road; cul-de-sac radii may reduce that to 30 feet⁴. County parking standards require forward movement onto public streets and place entrance and exit driveways near intersections at least 75 feet from the nearest intersecting curb line¹⁹. For state-highway access, SCDOT’s directive addresses residential driveways within the state right-of-way where access is not hazardous²⁰. Jasper County requires a development permit before development subject to its flood-damage-prevention ordinance begins; ask Planning and Building about parcel-specific review and elevation documents^1,17. Only about 2.9% of county soils avoid a severe USDA limitation rating for conventional septic drain fields¹³. Farmland averages about $4,579 per acre; the effective property-tax rate is about 0.6% and the median annual bill about $1,490¹³.