FAQ

What is a perc test on vacant land?

A perc test (percolation test) tells you whether the soil will absorb a septic system. If the land is not on a public sewer line, and most SC vacant land is not, you need a passing perc test before you can build anything that uses water.

1. What is a perc test?

   A perc test (percolation test) measures how fast water drains through the soil. The county environmental health office digs a few test holes, fills them with water, and times the drainage. If the soil drains too slow (clay) or too fast (sand), it cannot support a conventional septic system and the parcel may be unbuildable for residential use.

2. Do I need a perc test before buying vacant land in SC?

   If you plan to build anything that uses water (a house, cabin, RV pad with septic), yes, and during the inspection period of your purchase contract. If the land is recreational only (hunting, timber, parking), you may not need one, but a passing perc test substantially raises the resale value.

3. How much does a perc test cost in SC?

   In South Carolina this now runs through SCDES, the Department of Environmental Services. If you are searching for "DHEC septic", that is the old name: environmental permitting moved from DHEC to SCDES on 1 July 2024, and many contractors still say DHEC out of habit. Expect a test fee plus a contractor charge to dig the holes, commonly a few hundred dollars all in, and waits of several weeks in busier counties. Confirm current fees and turnaround with SCDES rather than relying on any figure published online, including ours.

4. What does "perc passed" mean on a SC land listing?

   It means the seller has a recent passing evaluation on file from the state (SCDES since July 2024, DHEC before that). The result is parcel-specific and does not last forever, so check the date and confirm it is still current before relying on it. A passed perc is one of the strongest signals a vacant land parcel is buildable.

LandXchange is a marketplace technology platform, not a real estate broker, law firm, or appraiser. Information here is general, for specific transactions, work with a licensed professional.