Retaining Walls: Anza vs Moreno Valley

Retaining walls over 3 feet measured from the bottom of the footing to the top of the wall require a building permit in Riverside County under California Building Code §105.2 (as adopted by Ordinance 460). Walls supporting a surcharge (such as a driveway or pool) require a permit at any height. Walls are drawn to seismic standards for Design Category D.

Retaining walls over 4 feet in height measured from the bottom of the footing to the top of the wall require a building permit and engineered plans in Moreno Valley. Walls supporting a surcharge such as a driveway or structure above require a permit at any height. Setback and drainage rules apply.