Chapel Hill, NC Building Setbacks & Zoning: Structure Height Limits (2026)

Section 3.8.2(e) of the Land Use Management Ordinance defines 'Maximum Setback Height' as the tallest a structure may rise at the perimeter setback line defined by the street, interior, and solar setbacks, measured from mean finished grade along the street façade; where a structure fronts more than one street, the lower, more restrictive grade controls. Section 3.8.2(f) defines 'Maximum Core Height,' the taller envelope allowed toward the interior of the lot, which increases the farther a wall sits from the perimeter setback line. In most districts that core height grows at a 1:2 slope, one foot of height for every two feet moved inward; in the Town Center-1 through -3 and Office/Institutional-3 and -4 districts it grows faster, at a 1:1 slope off the street and interior setbacks and 1:1.7 off the solar setback.

Table 3.8-1 applies these rules district by district: R-1 caps the setback height at 29 feet and the core height at 40 feet; R-5 allows 39 feet at the setback line and 60 feet in the core; Town Center-3 reaches 44 feet at the setback line and 120 feet in the core. Certain features, including spires, cupolas, chimneys, and rooftop solar collectors, may project above these limits under the exceptions in section 3.8.3, and near an airport, Federal Aviation Regulations Part 77 controls whenever it is stricter than the town's own limits.