North Carolina law requires sellers to disclose known septic system issues on the
Residential Property Disclosure Form. Buyers routinely add septic inspection
contingencies, and lenders on rural properties often require one. The NC Department
of Health and Human Services (DHHS) licenses Registered Environmental Health
Specialists (REHS) who perform inspections. Costs run $300–$650. The coastal
plain (Onslow, Brunswick, New Hanover counties) has a high concentration of older
gravity-fed systems in sandy, flood-prone soils. The Piedmont Triad and Charlotte
metro areas have seen significant septic-to-sewer conversions, but rural lots
remain on private systems. Wake, Chatham, and Orange counties see the highest
volume of real-estate-driven inspections.
Typical inspection cost in Wilmington: $300–$650