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

By Nara Bakthisaran. Sources checked Oct 16, 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. Improvement Permits are generally valid for 5 years.

Caswell County Environmental Health handles septic and well permits. It posts an Improvement Permit / Authorization to Construct application on its page. The county doesn't publish turnaround times; ask Environmental Health when you apply.

Environmental Health contact page: https://www.caswellnc.us/environmental-health/

Fees as published

Caswell County does not publish its new-construction septic fees (Improvement Permit and Construction Authorization) online; call Environmental Health for the current amount before you apply. Fees it does publish (General Services Application: https://www.caswellnc.us/app/download/971518925/General+Services+Application+Revised.pdf):

Sewer and city utilities

Yanceyville runs the town's water and sewer system (https://yanceyvillenc.gov/government/). Almost all of rural Caswell uses wells 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

Caswell County Planning (https://www.caswellcountync.gov/planning). Zoning covers only certain areas, including Hyco Lake, Yanceyville and Milton, so confirm with Planning which rules apply to a parcel. 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