Franklin County, NC Building Setbacks & Zoning: Structure Height Limits (2026)

Table 5-2 of the Unified Development Code fixes 'Maximum Structure Height (feet)' as its own column alongside lot size and setbacks, and that column shows 35 feet for R-80, the county's large-lot single-family district, and again 35 feet for R-8 with county water and sewer, covering single-family, family care home, duplex and multifamily uses up to 12 dwelling units per acre. Footnote 4 to the table makes the cap a hard ceiling for ordinary structures: 'The height regulations stipulated in this Ordinance shall not be exceeded except where a Variance is granted.' It carves out a narrow exception for non-occupied structures, church spires, belfries, cupolas, domes, monuments, observation towers, transmission towers, chimneys, smokestacks, conveyors, flagpoles, masts, aerials and grain elevators, which the Board of Commissioners can approve above the limit through a special use permit rather than a variance.

The same footnote adds a safety trigger unrelated to the numeric cap: whenever a structure's height exceeds 30 feet, fire apparatus access requirements come into play regardless of the district's overall ceiling. Nonresidential and commercial districts run higher, up to 120 feet in GB and HI under footnote 6, with setbacks stepping up an additional foot for every 2 feet of height above 75 feet, but the county's residential zones hold to the 35-foot line. Exceeding the height cap without a variance, or building an exempted structure without the required special use permit, is enforced under Section 3.4.2: the Administrator can deny the permit, issue a civil citation up to $500, and pursue Class 3 misdemeanor charges for the violation.