Broken Arrow, OK Fence Regulations: Retaining Walls (2026)
Key Facts
- Permit-exempt height
- 4 feet or less
- Not exempt
- walls with surcharge load
- Not exempt
- Class I/II/IIIA liquid walls
- Citation
- Broken Arrow Code § 6-17(b)(1)(d)
Summary
Retaining walls up to 4 feet tall are exempt from a Broken Arrow building permit; taller walls, or any wall holding back a surcharge or hazardous liquids, need one.
d. Retaining walls that are not over 4 feet (1219 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge or impounding Class I, II or IIIA liquids.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 43).
Full Breakdown
Broken Arrow's amended building code exempts retaining walls from a permit only when they measure 4 feet or less from the bottom of the footing to the top of the wall. The exemption doesn't apply if the wall supports a surcharge load or impounds Class I, II, or IIIA liquids: those walls need a permit and, in practice, engineered plans regardless of height. Everything over 4 feet requires a building permit reviewed by the city's neighborhood engagement and inspections division before construction begins.
Violations & Fines
Building a retaining wall over 4 feet, or one bearing a surcharge, without first pulling a permit is a code violation subject to the Class B offense penalties that apply to unpermitted building work.
Frequently Asked Questions
Do I need a permit for a 3-foot retaining wall?
What about a wall holding back a sloped yard with extra load?
Sources & Official References
Other rules in Broken Arrow
Compare Broken Arrow to another location·View the Oklahoma fence regulations overview
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Retaining Walls in Nearby Cities
How other cities in this county handle retaining walls.