Retaining Walls: Riverside vs Temecula

Retaining walls over 4 feet in height (measured from bottom of footing to top of wall) or supporting a surcharge load require a building permit and engineering in Riverside. Walls must be engineered to resist lateral earth pressure and comply with California Building Code requirements.

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.