Overland Park, KS Fence Regulations: Retaining Walls (2026)
Key Facts
- Setback from street ROW
- 2 feet minimum
- Height above retained grade
- 6 inches maximum
- Justification
- Lot topography required
- Site development permit
- Waivable under 4 feet
- Sight triangle
- 2-foot obstruction limit applies
Summary
Overland Park treats retaining walls as accessory structures under 18.390.140(C)(3). A wall must be justified by lot topography, sit at least 2 feet off any street right-of-way, and rise no more than 6 inches above the ground it retains.
Retaining walls may be permitted where they are reasonably necessary due to the topography of the lot, where the wall is located at least 2 feet from any street right-of-way, and where the wall does not extend more than 6 inches above the ground level of the land being retained.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: latest section effective 1901-01-01).
Full Breakdown
The UDO permits retaining walls where they are reasonably necessary due to the topography of the lot. Two dimensional limits apply: a 2-foot minimum separation from any street right-of-way, and a maximum of 6 inches of wall projecting above the retained ground level. Anything projecting higher functions as a fence or wall and falls under the 8-foot cap and fence permit in 18.390.140(C)(1). On the permitting side, Section 18.130.015 lists retaining walls among the site improvements needing a site development permit, and lets the Director of Planning and Development Services waive that permit for minor work including retaining walls under four feet in height.
Violations & Fines
Municipal Court prosecution and stop-work orders. Walls placed in street right-of-way or obstructing the sight distance triangle must be removed or rebuilt.
Frequently Asked Questions
Do I need a permit for a short garden wall?
Can I cap my retaining wall with a fence?
Can a retaining wall go on the property line?
Sources & Official References
Other rules in Overland Park
Compare Overland Park to another location·View the Kansas fence regulations overview
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Retaining Walls in Nearby Cities
How other cities in Johnson County handle retaining walls.