Martinez, CA Fence Regulations: Permit Requirements (2026)

Martinez Municipal Code Title 15 (Buildings) follows California Building Code standards for fence permits. No building permit is required for standard residential fences up to 6 feet in height built on level ground with conventional materials. Building permits ARE required for: fences over 6 feet in height (including combined fence/wall assemblies), retaining walls over 3 feet in height (or any height if supporting a surcharge), pool barrier fences (must comply with CA Health & Safety Code §115920), fences within the downtown historic district or Design Review areas, and fences in hillside or geologically constrained zones. Permit applications are submitted to the Community Development Department at 525 Henrietta Street, requiring: site plan showing fence location and property lines, elevation drawings showing height and materials, structural details for tall or engineered fences, and for engineered walls, calculations stamped by a California-licensed engineer. Fee schedule: simple over-height fence permit approximately $150-$250; retaining walls $250-$400; engineered walls $500+; historic district review may add $200-$500. Inspection is required for footings, structural framing, and final. Permits must be obtained before construction begins — retroactive permitting incurs double fees. Property line verification is the owner's responsibility; surveys are strongly recommended for fences over 4 feet.