Can I Build ADU in Tulsa, OK? (2026)
Find out if you can build a adu in Tulsa, OK. Rules, permit requirements, costs, and next steps.
Yes, ADUs are allowed in Tulsa, OK. California state law ensures by-right approval.
An Accessory Dwelling Unit (ADU) is a secondary housing unit on a residential lot — also called a granny flat, in-law suite, or backyard cottage. In Tulsa, OK, ADUs are permitted by right under state law, making them one of the most accessible ways to add housing on your property. ADUs can be detached, attached to the main home, or created by converting an existing garage or accessory structure.
ADU Rules in Tulsa
ADU Rules in Tulsa: Detached ADU max size: 850 sq ft. Attached ADU max size: 50% of primary dwelling floor area. Setbacks: 3 ft side, 5 ft rear. Owner-occupancy: Tulsa's 2020 zoning code removed the owner-occupancy requirement that previously restricted ADU rentals. Property owner may rent ADU without residing on property..
Costs & Fees
ADU permits in Tulsa: Total estimated permit cost: $1,200–$5,500 total fees. Contact the City of Tulsa Development Services for current fee schedule.
Timeline
Tulsa Development Services permit: typically 3-5 weeks for residential ADU permits. Tulsa uses the eTulsa online permitting system. Construction typically 4-12 months.
Next Steps
Next steps for building an ADU in Tulsa: 1. Review full ADU rules including size limits, setbacks, and parking. 2. Apply for an ADU permit through the City of Tulsa Development Services at https://etulsa.cityoftulsa.org/. 3. Hire a licensed contractor familiar with OK ADU requirements.
City of Tulsa Development Services
Phone: (918) 596-9456
Website: https://www.cityoftulsa.org/ops/planning
Online Permits: https://etulsa.cityoftulsa.org/
Frequently Asked Questions
What was Tulsa's 2020 zoning reform and how does it affect me?
Tulsa adopted a comprehensive new Zoning Code in 2020 that replaced a decades-old framework. Key changes affecting homeowners: ADUs are now allowed by-right in all RS zones (no longer requires conditional use permit), parking minimums were reduced in mixed-use and transit-adjacent areas, and new form-based RS-4 and MX zones were created for compact development. If you want to build a backyard cottage or convert your garage to a rental unit, the new code makes it easier than before.
Can I build an ADU on my Tulsa property?
Yes. Since the 2020 zoning reform, ADUs are allowed by-right in all RS (single-family residential) zones in Tulsa. Maximum size is typically 850 sqft. The big change from before 2020: you no longer need a conditional use permit (discretionary approval) — you apply for a building permit directly. No owner-occupancy requirement. Oklahoma has no statewide ADU law, so Tulsa's local rules govern.
Does Tulsa have short-term rental (Airbnb) restrictions?
Yes. Tulsa requires a Short-Term Rental License for rentals under 30 days. The annual fee is approximately $125. License number must appear in all listing platform postings. Occupancy limits (2 per bedroom), noise ordinance, and parking rules apply. Oklahoma's 4.5% Hotel/Motel Tax plus Tulsa local lodging tax applies to STR income.
Is Tulsa's Art Deco district designated — do I need special permits for exterior changes?
Yes. Tulsa's Art Deco downtown and surrounding historic districts are designated at both local and National Register levels. If your property is a contributing structure in a local historic district, you may need a Certificate of Appropriateness from the Tulsa Preservation Commission for exterior changes including roofing, windows, siding, and additions. Contact the OPS Planning Department to verify your property's historic status.
Can I run a home-based food business in Tulsa?
Yes. Oklahoma's Cottage Food Law allows home-based food production and sale up to $50,000 per year without a food establishment permit. Allowed products include baked goods, jams, candy, and similar shelf-stable items. No state registration or permit required. Direct-to-consumer sales from home, farmers markets, and community events are permitted. Proper labeling is required.
Source: City of Tulsa Development Services — Building Regulations. Last verified April 6, 2026. View source