Retaining Walls: Moreno Valley vs Riverside

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.

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.