Buying a lot in Alamance 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.

Process (https://www.alamancecountync.gov/health_human_services/environmental_health/programs/on_site_wastewater/evaluating_a_site_for_a_septic_system.php): before the visit, stake and flag the property corners, side lines and the house location. If the site isn't marked, you pay a revisit fee. If it needs clearing, the evaluation is paused, with no fee. You get a written approval or a denial with appeal rights. The county doesn't publish turnaround times; ask Environmental Health when you apply.

Environmental Health contact page: https://www.alamancecountync.gov/health_human_services/environmental_health/programs/on_site_wastewater/applying_for_a_septic_system_permit.php

Fees as published

Official 2025/26 fee schedule: https://eh.alamancecountync.gov/wp-content/uploads/sites/27/2025/06/Environmental-Health-Fees-25-26-1.pdf

Sewer and city utilities

Burlington: city staff check whether water and sewer reach a property and quote connection costs. If they don't, Engineering discusses line extensions. System development fees apply, and property outside city limits generally has to be annexed first (https://www.burlingtonnc.gov/159/Water-and-Sewer). Graham and Mebane: ask the town's utility department. If sewer is available, you generally skip septic permitting, but there may be tap or extension costs.

Zoning and setbacks: where to check

Unincorporated Alamance County has no traditional zoning, but building, septic, well, floodplain, watershed and subdivision rules still apply. County Planning can confirm which rules cover a parcel: 336-570-4053, Planning@alamancecountync.gov (https://www.alamancecountync.gov/property_records/planning/zoning.php). Inside Burlington and its extraterritorial jurisdiction: the city's online zoning map and Planning Department (https://www.burlingtonnc.gov/planning). 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