Metal shops and garages in Oklahoma City
Oklahoma City runs from tight urban lots near downtown to multi-acre tracts on its far edges. Its zoning code ties shop size and wall height to lot area, so the first number to find is your acreage.
Limits by lot size
| Lot size | Total detached accessory coverage | Max metal wall height |
|---|---|---|
| Under 1/2 acre | 1,000 sq ft | 10 ft |
| 1/2 to under 1 1/2 acres | 1,250 sq ft or 2.5% of the lot, whichever is greater | 12 ft |
| 1 1/2 to under 3 acres | 2.5% of the lot | 14 ft |
| 3 acres or more | 5% of the lot | see code |
Source: Oklahoma City Code Ch. 59, Art. XII (Zoneomics copy). Wall height is measured to the top of the side-wall fascia.
Design rules on small lots
Under half an acre, the code also requires baked-on paint on metal wall panels and trim, a hip or gable roof of at least 4:12 with a one-foot soffited overhang on anything taller than 10 feet (gambrel roofs excepted), placement behind the rear wall of the house, and overhead doors no taller than 9 feet (Oklahoma City Code Ch. 59, Art. XII (Zoneomics copy)). Larger lots follow the same list unless the code says otherwise for that size.
Setbacks
On lots of one acre or more, accessory buildings need 25-foot side and rear setbacks; on 3 acres or more, the same 25 feet applies (Oklahoma City Code Ch. 59, Art. XII (Zoneomics copy)). In R-1 and similar districts, a building without a permanent foundation may sit 3 feet from side and rear lines (Oklahoma City Code Ch. 59, Art. XII (Zoneomics copy)).
Permits
The City's permit page says a permit is required to build or alter any primary or accessory structure, and lists (405) 297-2525 for questions (OKC Building and Trade Permits).
More: costs, metro rules, carports.