Permit Requirements: Anza vs Riverside

Riverside County requires a building permit for fences over 6 feet and for retaining walls over 3 feet above lower grade, per California Building Code and Ordinance 457. Fences on property lines between neighbors generally do not need a permit at 6 feet or under, but permits are still needed if engineered footings, masonry, or pool-barrier compliance is involved.

Riverside requires a building permit for fences and walls taller than 6 feet, and for all retaining walls over 4 feet (measured from footing bottom to top of wall). Fences under 6 feet in rear/side yards generally do not require a permit but must still meet Title 19 zoning standards.