Retaining walls in Dallas are regulated under the Dallas Building Code and Development Code Chapter 51A. A building permit is required for retaining walls exceeding 4 feet in height measured from the bottom of the footing to the top of the wall. Retaining walls in floodplain areas must also comply with Article V floodplain regulations. Engineering plans stamped by a licensed professional engineer are required for walls above 4 feet.
Dallas regulates retaining walls to ensure structural safety and proper drainage. Walls up to 4 feet typically do not require a permit. Walls over 4 feet require a building permit and may need engineered plans stamped by a licensed professional engineer. Surcharge loads from driveways, structures, or slopes above the wall may lower the permit-free threshold. Drainage behind the wall is critical and must be addressed in design. Setback requirements apply to retaining walls near property lines.
Unpermitted walls: stop-work order, required engineering review, potential demolition. Fines $200 to $1,000.
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Side-by-side rule comparisons with other cities in Dallas County.
See how other cities in Dallas County handle retaining walls.
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