Tiny Homes: Owasso vs Tulsa

Can I live in a tiny house on wheels in Tulsa County?

Not as a permanent dwelling in residential zones. THOW are classified as RVs under Oklahoma Title 47 and limited to RV parks or short-term use. Foundation-built tiny homes are allowed per IRC Appendix Q.

What's the minimum dwelling size in Tulsa County?

Varies by zoning district — often 600-800 sq ft for standard residential. IRC Appendix Q allows tiny homes down to 400 sq ft or less on foundations, but local minimum-size rules may override unless a variance is granted.

Are tiny homes legal in Tulsa, Oklahoma?

Yes, when built on a permanent foundation and treated as an Accessory Dwelling Unit or single-family dwelling under Chapter 45 of the Tulsa Zoning Code (Title 42) and Title 51 (Building Code), which adopts the IRC including Appendix Q for tiny houses 400 square feet or less. Tiny homes on wheels are regulated as RVs/manufactured homes and are not allowed as primary residences in standard residential districts. Verify district rules with the Tulsa Planning Office at (918) 584-7526.

How big can a tiny home or ADU be in Tulsa?

Detached ADUs in Tulsa may not exceed 750 square feet or 40% of the principal home's floor area, whichever is smaller, under Chapter 45 of the Tulsa Zoning Code. The owner must occupy either the primary residence or the ADU. Within the Neighborhood Infill Overlay (effective December 2021) ADUs are permitted by right in RS-3, RS-4, RS-5, RD, RT, and RM-0 through RM-3 districts; outside the overlay a special exception from the Board of Adjustment is required.