Accessory Structures in Norman, OK (2026)
3 verified accessory structures rules for Norman, Oklahoma, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Norman's R-1 Single-Family Dwelling District allows one accessory dwelling unit per lot, capped at 650 square feet, under NCC 36-514. Detached one-story ADUs must sit at least ten feet from the side or rear property line, 15 feet if more than one story, and stay within the rear half of the lot. Only one principal building and one ADU are allowed per lot.
Norman ADU Size and Setback Rules
Some RestrictionsNorman Code of Ordinances (NCC) § 36-514
One accessory dwelling unit with a total area of no more than six hundred fifty square feet (650 SF) ("ADU"), except that this use shall not be adopted by reference into the uses allowed in R-2 ("Two-Family Dwelling District"), RM-2 ("Low-Density Apartment District"), and R-3 ("Multifamily Dwelling District"). ... Unattached one-story buildings of accessory use, including ADUs, shall be located...
Shed & Carport Rules
A Norman shed only skips the building permit if it stays under 120 square feet, sits off any slab or foundation, and has no electric, plumbing or gas connection. Bigger or serviced sheds need a permit, and every accessory building still has to clear the zoning district's side and rear yard setbacks.
Norman Backyard Shed Permit and Setback Rules
Some RestrictionsNorman Code of Ordinances § 6-209 (IRC § R105.2)
One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided the following: the floor area is not greater than 120 square feet (11.15 m2); such building is not constructed on or attached to a concrete slab, foundation, or permanent base; and such building has no electric, plumbing or gas service connection.
Tiny Homes
Norman allows one tiny house per lot under NCC 36-561, capping floor area at 400 square feet excluding lofts. Every unit needs a City Building Inspector site inspection with plumbing, electrical and mechanical components exposed, an anchored permanent foundation the Building Official approves, and construction to IRC Appendix Q. Water, wastewater and electrical hookups must be active before anyone moves in.
Norman Tiny House Zoning Rules
Some RestrictionsNorman City Code (NCC) Section 36-561, Tiny House Regulations
Tiny house regulations. Definition. The term "tiny house" means a dwelling unit that is 400 square feet or less in floor area excluding lofts. Conditions of use. One tiny house is allowed per lot. All tiny houses must have adequate water and wastewater disposal systems and be connected to electricity prior to habitation. Inspections for all units shall be made on site by City Building Inspector...