Alamance County, NC Building Setbacks & Zoning: Setback Rules (2026)

1 of the Unified Development Ordinance, amended December 16, 2024, establishes Alamance County's baseline yard setbacks, measured from any right-of-way line rather than the property line. Front setbacks scale with road classification: 40 feet from an arterial road, 40 feet from a major collector, 35 feet from a minor collector, and 30 feet from a local road or a cul-de-sac right-of-way. Side setbacks are 25 feet where the lot abuts a street right-of-way and 10 feet where it abuts a property line that is not a right-of-way.

The rear setback is a flat 20 feet. No building or structure may be erected within the setback area between the lot line and the building setback line. Cul-de-sac lots carry an added dimensional rule: a minimum 20-foot frontage at the street right-of-way and a 60-foot width measured 30 feet back from that line. Accessory structures get a carve-out from the rear setback, allowed as close as 3 feet to the rear property line or an easement line. The county repeats this same setback schedule for subdivisions platted after July 3, 1972, in the Subdivision Regulations' Building Setback Lines section, so the standard applies whether a lot was created by subdivision plat or built out individually.

The Planning Department reviews building plans against these lines before issuing permits, and any structure erected within a required setback is out of compliance with the Ordinance.