Buying a lot in Randolph County, NC: septic, sewer, zoning and flood checks

By Nara Bakthisaran. Sources checked Oct 15, 2026. Always confirm with the county before you pay or close.

Septic and soil evaluation process

In NC, the old "perc test" is now a soil and site evaluation by county Environmental Health. If the site qualifies, the county issues an Improvement Permit (IP): where the system can go, what type, and for how many bedrooms. The Construction Authorization (CA/ATC) comes next and is needed before a building permit. An IP for a 3-bedroom house may not cover 4 bedrooms.

This is a two-stage process: Improvement Permit, then Construction Authorization. You need the CA before building permits are issued, and an Operation Permit after the system is installed. The county doesn't publish turnaround times; ask Environmental Health when you apply.

Environmental Health contact page: https://www.randolphcountync.gov/397/On-Site-Water-Protection-Program

Fees as published

Official FY2026-27 schedule: https://www.randolphcountync.gov/DocumentCenter/View/6629/2026-2027-EH-Fees-Approved-by-BOH-and-BOCC

Sewer and city utilities

Inside Asheboro, Archdale, Randleman or nearby, ask that city's utility department; Asheboro doesn't post a utility connection page online, so call the City of Asheboro to ask about water and sewer taps. Rural parcels usually need a well and septic. If sewer is available, you generally skip septic permitting, but there may be tap or extension costs.

Zoning and setbacks: where to check

Randolph County Planning & Zoning (https://randolphcountync.gov/213/Planning-Zoning). A zoning permit is the first permit required, and most rural land is zoned Residential Agricultural (RA). Several towns extend zoning up to a mile past their limits (https://www.randolphcountync.gov/DocumentCenter/View/793/Citizens-Guide-to-Land-Development-PDF). Asheboro: city Planning & Zoning; a single-family zoning compliance permit is $30 (https://cms9files.revize.com/asheboronc/Document Center/Planning & Zoining/25-26P&ZFees_New_FINALADOPTED.pdf). Ask about the zoning district, minimum lot size, front, side and rear setbacks, road frontage and access, and any HOA or recorded restrictions.

Flood check

• FEMA Flood Map Service Center: https://msc.fema.gov/portal/search. Look up the address and check for zones A or AE.
• First Street (riskfactor.com): free property-level flood risk score that models future risk beyond FEMA zones. It's useful context but not a regulatory determination.

Pre-purchase checklist

• Make the contract contingent on an IP (or a soil scientist's report) for your bedroom count, and give it enough time
• Is a permit already on file? Get a copy and check its date (5-year validity)
• Is sewer available, and what does connection cost?
• Will a well be needed? Ask neighbors about water quantity and quality
• Zoning, setbacks and minimum lot size; deed restrictions and HOA
• Legal road access (not landlocked) and driveway permit (NCDOT if it's a state road)
• FEMA flood zone, wetlands, streams and buffers
• Survey with corners marked (also needed for the soil evaluation visit)
• Title search and easements
• Rough site-work budget: clearing, grading, a longer driveway, an alternative septic system

General guidance: NC State Extension, https://content.ces.ncsu.edu/investigate-before-you-invest · NC Real Estate Commission, https://www.ncrec.gov/Brochures/DueDiligenceBrochure.pdf