Norman, OK Building Setbacks & Zoning: Structure Height Limits (2026)

" A builder can add a third story only by increasing the side yards "an additional five feet" beyond the standard five-foot minimum, trading yard space for height. Accessory structures face a separate cap: "Any accessory building, including an ADU, shall not exceed a wall height of ten feet unless the required side and rear yard setbacks are increased by one foot for each additional foot of wall height above ten feet," and no accessory building may ever exceed the height of the principal dwelling it serves.

NCC 36-546 supplies the citywide measuring rules that NCC 36-514 cross-references: a habitable basement or attic counts as a full story if it sits less than six feet above average grade for more than half the building's perimeter, while chimneys, elevators, flagpoles, spires, tanks and water towers may rise above the height limit (commercial communication towers are excluded from that exemption). Churches, schools, hospitals and other public or semi-public buildings may reach 55 feet or four stories if front, rear and side yards are widened one foot for every foot of extra height.

Neighboring districts scale differently: NCC 36-515's R-1-A, Single-Family Attached District caps buildings at 27 feet before requiring added setback, with 35 feet as the absolute ceiling, and NCC 36-516's R-2, Two-Family District uses the same two-story baseline as R-1.