Encinitas, CA Fence Regulations: Retaining Walls (2026)

Encinitas regulates retaining walls under the California Building Code as adopted locally and Municipal Code Title 30. Retaining walls 4 feet or under in height (measured from the bottom of the footing to the top of the wall) are generally exempt from building permits, though they must still comply with setback and grading requirements. Walls exceeding 4 feet require a building permit from Development Services at (760) 633-2710 with engineered structural plans prepared by a licensed civil or structural engineer. Retaining walls supporting surcharge loads (driveways, structures, slopes above) may require engineering regardless of height. Properties on coastal bluffs are subject to the city's Bluff and Hillside Overlay Zone which imposes additional setback, design, and environmental review requirements. Retaining walls in the Coastal Zone typically require a Coastal Development Permit addressing visual impact, public access, and geotechnical stability. Terraced retaining walls (multiple walls in a series) are measured from the lowest grade to the highest point for permit purposes. Proper drainage behind retaining walls with weep holes or drainage aggregate is required to prevent hydrostatic pressure buildup. Grading permits may also be required for significant earthwork associated with retaining wall construction.