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

Yes. Residential construction in county-administered Chester County requires a building permit⁵. Before issuance, the county requires a 911 address, recorded plat, tax map number, plans, contractor information and applicable water, sewer or septic documentation⁵. A property in a floodplain also needs an elevation survey and elevation certificate prepared by a licensed surveyor or engineer⁵.

South Carolina's 2021 code cycle took effect in 2023; the state also lists 2024 codes, so confirm the edition enforced for the project date with Building + Zoning^1,9. Chester County inspections run from foundation and rough-in stages through final inspection; final wastewater approval and duct-blast documentation must reach the office before the final inspection can be completed¹⁰. A residential structure cannot be occupied until it passes final inspection and receives a Certificate of Occupancy¹⁰.

Chester County Building + Zoning reviews plans, coordinates inspections and issues building permits at 1476 J.A. Cochran Bypass in Chester; call (803) 581-0942¹. The department lists unincorporated Chester County, Great Falls and Fort Lawn in its service area, but excludes Chester city, Richburg and Lowrys¹. Inside Chester city, the city building official handles building permits; DES still handles septic approval where public or community sewer is unavailable^2,3.

Chester County provides online building permitting and plan review, and inspections can be scheduled online or by calling the office^1,10. County Council sets zoning-permit and zoning-compliance fees; the published building fee schedule is dated 2017, so ask Building + Zoning for the current project total^1,8.

Chester County zoning applies throughout unincorporated Chester County, with allowed uses, lot sizes, setbacks and height limits determined by district^1,8. In the AG Agricultural District, residential lots need at least 4 acres; front yards measure 25 feet from the road right-of-way, side yards 15 feet from the interior side lot line and rear yards 20 feet from the interior rear lot line⁸. AG structures generally have a 35-foot roof-line height limit, with listed exceptions⁸.

Chester city and Great Falls have their own zoning regulations; county district standards below concern unincorporated land^1,4,6. DES retains septic approval in Chester city; Great Falls also requires a written private-sewage-disposal permit from the town superintendent and state approval for septic tanks^2,11.

AG manufactured homes on single residential lots require a permanent foundation, masonry or concrete underpinning, removal of wheels and mobile features, tie-downs, specified roofing and parking; RS-1 prohibits manufactured homes⁸. Cottage-lot homes in Urban Conservation Subdivisions have a 500-square-foot minimum, which does not establish a countywide dwelling minimum¹².

South Carolina DES issues septic permits for Chester County homes and manufactured homes without public or community sewer; the county cannot issue the building permit until the required septic permit is obtained². Apply online with a plat or deed; the traditional process includes a site-suitability evaluation, and the application fee is $150². A Permit to Construct must precede installation and lasts 5 years; renewal or changes require a new application and fee².

The installer must schedule a DES inspection before covering the system; if the inspector does not arrive within 30 minutes, a licensed installer may self-inspect and submit the required final-inspection form². Only 36.1% of Chester County soils are rated without severe limitations for a conventional septic drain field, so make site approval a purchase contingency¹³. For application questions, call 1-855-731-2504 or email OSWWCentral@des.sc.gov¹⁴.

In unincorporated Chester County’s R-3 and R-4 districts, commercial campgrounds accommodating RVs, campers, travel trailers and tents require a Board of Zoning Appeals special exception, at least 10 acres, a 500-foot setback from residential property lines and no more than 10 vehicles or campers per acre⁸. Campground approval also requires a site plan, road standards and compatibility with the district^15,16. The ordinance’s camper definition excludes permanent residential use; commercial-campground approval does not establish permission to live in an RV on a private residential lot⁸. We could not confirm private-lot RV occupancy or camping during construction; ask Building + Zoning about the parcel before connecting utilities¹.

We could not confirm a separate tiny-home occupancy rule; ask Building + Zoning about the proposed dwelling and district¹. Residential construction requires a building permit, and occupancy requires a passed final inspection and Certificate of Occupancy^1,10.

1. Confirm that Chester County, rather than a municipality, has jurisdiction and ask Building + Zoning to identify the parcel’s district, allowed use, lot-size rule, setbacks and height limit^1,8.
2. Obtain the 911 address, recorded plat and tax map number, then prepare the plans and contractor documentation; owner-builders must personally supervise, build for owner/family use and complete a notarized, recorded disclosure^7,10.
3. Document the water and wastewater path; a site without public or community sewer needs state septic approval^2,5.
4. Submit the residential permit package and any floodplain elevation documents that apply^1,5.
5. Schedule the required construction inspections and secure final wastewater approval⁵.
6. Do not occupy the home until the final inspection passes and Chester County issues the Certificate of Occupancy⁵.

Start with jurisdiction and zoning: confirm whether the parcel is in unincorporated Chester County or a municipality, then verify the district, allowed dwelling type, lot size, setbacks, height limit and subdivision status with Building + Zoning^1,8. The county reviews plats for compliance with its development regulations in county-administered areas¹. A commercial or industrial project needs a Department of Transportation encroachment permit, but we could not confirm the approval rule for a residential driveway; ask Building + Zoning before assuming existing access is sufficient^1,17.

Treat wastewater, water and flood risk separately. Only 36.1% of county soils are rated without severe limitations for a conventional drain field¹³. Before drilling an individual residential well, South Carolina requires a Notice of Intent and a $70 fee; the well driller must also give DES 48 hours' notice before installation¹⁸. Floodplain construction requires elevation documentation, and the county office checks floodplain status⁵.