Material Restrictions: Brentwood vs Martinez
How do material restrictions rules compare between Brentwood, CA and Martinez, CA?
Brentwood and Martinez have similar restriction levels.
Brentwood, CA
Contra Costa County
Brentwood permits a wide range of fence materials including wood, vinyl, wrought iron, masonry, and chain link, subject to zoning and HOA restrictions. Barbed wire, razor wire, and electrified fencing are prohibited in residential zones. Many HOAs in master-planned communities like Brentwood Hills and Trilogy impose material-specific requirements.
View full Brentwood rules →Martinez, CA
Contra Costa County
Unincorporated Contra Costa County allows wood, vinyl, composite, masonry, stucco, wrought iron, and chain-link fencing in most residential zones. Some community-specific design standards in Alamo, Kensington, and Saranap restrict certain materials by front-yard visibility and aesthetics.
View full Martinez rules →Key Facts Comparison
| Fact | Brentwood | Martinez |
|---|---|---|
| Permitted | Wood, vinyl, iron, masonry, chain link | - |
| Prohibited (residential) | Barbed, razor wire, electric | - |
| Allowed ag/industrial | Barbed wire OK | - |
| HOA overlay | Common in master-planned communities | - |
| Maintenance | Required (nuisance if deteriorated) | - |
| Common Materials | - | Wood, vinyl, masonry, iron, chain-link |
| Agricultural Options | - | Barbed, high-tensile, electric |
| Prohibited | - | Razor / concertina in residential |
| Masonry Permit | - | Over 3.5 ft — engineered |
| CPA Design | - | Alamo / Kensington / Saranap stricter |
Highlighted rows indicate differences between cities.
Brentwood FAQ
Can I have a chain-link fence in front?
Chain link is legal citywide, but many Brentwood HOAs (Brentwood Hills, Trilogy, Shadow Lakes) prohibit chain link in front or side yards visible from the street. Check your CC&Rs before installing.
Is electric fencing allowed for dogs?
Underground "invisible" pet-containment systems are allowed as they are not structural fences. Above-ground electrified fencing is prohibited in residential zones.
Martinez FAQ
Can I install a chain-link front-yard fence in Alamo?
Technically permitted by county code, but Alamo's Municipal Advisory Council design expectations often discourage front-yard chain-link in favor of wood or open-rail. Neighbors can object during any design-review process.
Is electric fencing allowed for my horses in Byron?
Yes in agricultural zones for livestock containment, with proper warning signs and current limits per state livestock-fencing standards.
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