Do I need a permit for a retaining wall in St. George Utah?

In St. George, retaining walls over 4 feet tall (measured from the bottom of the footing to the top of the wall) require a building permit and stamped engineered plans. Walls under 4 feet on private residential property typically do not require a permit.

How tall can a retaining wall be without a permit in Utah?

In most Utah jurisdictions including St. George, retaining walls under 4 feet tall do not require a permit. However, walls that retain a driveway, affect drainage to neighboring properties, or are in flood zones may still require permits regardless of height.

How much does a retaining wall permit cost in St. George?

Retaining wall permit fees in St. George vary based on the scope of work but typically range from $100-$300 for the permit itself. You'll also need stamped engineered plans, which cost $500-$2,000 depending on wall complexity and height.

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Permits

Retaining Wall Permit Requirements in St. George

Permit and code requirements for retaining walls in Washington County.

5 min read

January 17, 2026

St. George retaining wall permit requirements.

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Retaining Wall Permit Requirements in St. George

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