Retaining Walls: Corona vs Temecula

Retaining walls in Corona over 4 feet (measured from bottom of footing to top of wall) require a building permit. Walls supporting any surcharge load — sloped soil, driveways, pools, or structures — require permits and engineered design at any height. Hillside areas have additional requirements for terracing and drainage.

Retaining walls over 4 feet (measured from bottom of footing to top of wall) require a building permit and engineered plans in Temecula. Walls supporting surcharge loads (driveways, structures, slopes) require engineering at any height. Hillside lots in Wine Country foothills and Redhawk often need significant grading review.