Fences under 6 feet do not require building permits in unincorporated Orange County if they comply with zoning requirements. Front setback fences have a 3.5 foot limit. No chain-link in front. Fences over 6 feet and retaining walls over 4 feet require permits.
Orange County exempts standard fences under 6 feet from building permits when they comply with zoning. Key regulations: front setback fences limited to 3.5 feet within visibility triangles, chain-link prohibited in front setback areas, side/rear yard fences up to 6 feet allowed. Fences over 6 feet require building permits with engineering review. Retaining walls over 4 feet require permits. Pool barriers must be 60 inches minimum per California Building Code with self-closing, self-latching gates. The county's ePermit system accepts fence permit applications. Corner lots have additional sight-line requirements.
Non-compliant fences face violation notices and progressive administrative citations ($100-$1,000).
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Side-by-side rule comparisons with other cities in Orange County.
See how Costa Mesa's fence permits rules stack up against other locations.
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