Eastvale, CA Fence Regulations: Retaining Walls (2026)

In Eastvale, retaining walls are addressed in Zoning Code Section 5.3 'Fences, Walls, and Screens.' Section 5.3-A exempts 'retaining walls less than thirty-six (36) inches in height' from Development Review; retaining walls 36 inches or taller fall under the default rule that walls require Minor Development Review approval. Section 5.3-B and the height-measurement rules of Section 5.3-C also govern walls: where fencing is placed atop a wall, the fence height is generally measured from the base of the wall, and from the perspective of the sidewalk, roadway, or adjacent property the combined fence-and-wall height must not exceed 6 feet. Separately, the California Building Code (Section 105.2), which the City enforces for structural safety, exempts retaining walls 'not over 4 feet in height measured from the bottom of the footing to the top of the wall' from a building permit, unless the wall supports a surcharge (such as a slope or driveway above) or impounds certain liquids - in which case a permit and engineering are required. Because Eastvale's terrain includes graded tract pads, combined wall-plus-fence situations are common; the 6-foot combined-height rule from Section 5.3-C is the key constraint. HOA architectural rules may add further restrictions in master-planned communities. Confirm structural and zoning requirements with the City's Building and Planning divisions before construction.