Oklahoma Retaining Wall Permit Requirements

Statewide Building Code

Oklahoma adopts the 2018 International Residential Code (IRC) and the 2018 International Building Code (IBC), with amendments by the Oklahoma Uniform Building Code Commission (OUBCC). These codes form the basis for building regulations across the state, though local jurisdictions may have additional requirements. 

R404.4 Retaining Walls

Section R404.4 of the IRC specifies that retaining walls over 4 feet in height, measured from the bottom of the footing to the top of the wall, must be designed by a registered design professional. These walls must be constructed to ensure stability against overturning, sliding, excessive foundation pressure, and water uplift.

When Is a Retaining Wall Permit Required?

In Oklahoma, permit requirements for retaining walls vary by municipality. Generally:

  • Retaining walls over 4 feet in height typically require a building permit and must be designed by a licensed engineer.
  • Walls 4 feet or less may require a zoning clearance or may be exempt, depending on local regulations.

For example, in Tulsa, retaining walls up to 4 feet tall require a zoning clearance permit, while those over 4 feet require a building permit and an engineer’s design.

Front Yard Setback Requirements

Setback requirements for retaining walls are determined by local zoning ordinances and can vary between municipalities. It’s essential to consult your local planning or zoning department to determine specific setback requirements for your property.

Local Jurisdiction Requirements

Oklahoma City

  • Permit Requirement: Retaining walls over 4 feet in height require a building permit.
  • Process: Applications can be submitted through the OKC Development Services Portal.

Tulsa

  • Permit Requirement: Retaining walls up to 4 feet tall require a zoning clearance permit; walls over 4 feet require a building permit and must be designed by a licensed engineer.
  • Process: Applications are managed by the Tulsa Planning Office.

Norman

Broken Arrow

Lawton

  • Permit Requirement: Retaining walls require a building permit.
  • Process: Applications are managed by the Lawton Building Division.

In Oklahoma, retaining wall regulations are governed by the state’s adoption of the 2018 IRC and IBC, with local amendments. Walls over 4 feet in height typically require a building permit and must be designed by a licensed engineer. Learn more about our engineering services in Oklahoma here.