Tulsa, OK Accessory Structures: Tiny Homes (2026)
Tiny home rules in Tulsa, OK, covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds, determine where they are legal and how they get permitted.
Key Facts
- Max floor area
- 400 sq ft, lofts excluded
- Min ceiling height
- 6 ft 8 in, living space
- Min loft area
- 35 sq ft
- Adopted by
- Ord. No. 24935 (2022)
- Enforced by
- Development Services Division
Summary
Tulsa's Building Code adopts IRC Appendix Q, allowing free-standing tiny houses of 400 square feet or less to meet relaxed ceiling height, stairway, and loft standards instead of full residential code minimums.
AQ101.1 Scope. This appendix shall be applicable to tiny houses used as single dwelling units. Tiny houses shall comply with this code except as otherwise stated in this appendix.
SECTION AQ102. - DEFINITIONS.
AQ102.1 General. The following words and terms shall, for the purposes of this appendix, have the meanings shown herein. Refer to Chapter 2 of this code for general definitions.
EGRESS ROOF ACCESS WINDOW. A skylight or roof window designed and installed to satisfy the emergency escape and rescue opening requirements of Section R310.2.
LANDING PLATFORM. A landing provided as the top step of a stairway accessing a loft.
LOFT. A floor level located more than 30 inches (762 mm) above the main floor, open to the main floor on one or more sides with a ceiling height of less than 6 feet 8 inches (2032 mm) and used as a living or sleeping space.
TINY HOUSE. A dwelling that is 400 square feet (37 m2) or less in floor area excluding lofts. Also called "Tiny Home", "Micro-Unit", "Micro House" or similar name.
SECTION AQ103. - CEILING HEIGHT.
AQ103.1 Minimum ceiling height. Habitable space and hallways in tiny houses shall have a ceiling height of not less than 6 feet 8 inches (2032 mm). Bathrooms, toilet rooms and kitchens shall have a ceiling height of not less than 6 feet 4 inches (1930 mm). Obstructions including, but not limited to, beams, girders, ducts and lighting, shall not extend below these minimum ceiling heights.
Full Breakdown
Section 200 of Title 51, Chapter 2 adopts the 2018 International Residential Code, and Appendix Q, reproduced in the Tulsa Revised Ordinances with no deletion clause, lets a detached dwelling of 400 square feet or less, lofts excluded, skip several standard IRC minimums. Ceiling height drops to 6 feet 8 inches in living space and 6 feet 4 inches in kitchens and baths; sleeping lofts need only 35 square feet and 5 feet in any direction; access stairs and ladders get separate width, headroom, and rung-spacing rules. The Development Services Division of the Planning and Development Department enforces the code and issues building permits.
Violations & Fines
A tiny house built below Appendix Q's minimums, undersized lofts, non-compliant stairs, missing egress openings, fails city inspection, and the Development Services Division will withhold the certificate of occupancy.
Frequently Asked Questions
Can I legally build a tiny house in Tulsa?
Does Appendix Q let me add a tiny house as a backyard rental?
Sources & Official References
Other rules in Tulsa
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