Height Limits: Brentwood vs Martinez
How do height limits rules compare between Brentwood, CA and Martinez, CA?
Brentwood and Martinez have similar restriction levels.
Brentwood, CA
Contra Costa County
Brentwood fences are limited to 3.5 feet in front yards and 6 feet in side and rear yards. Fences over 6 feet require a building permit and may need a zoning variance. Corner lots have additional visibility triangle restrictions to protect sight lines at intersections.
View full Brentwood rules →Martinez, CA
Contra Costa County
Martinez allows fences up to 6 feet high in side and rear yards and up to 3.5 feet in front yards or within street-facing setback areas. Corner lot visibility triangles have additional height restrictions to preserve traffic sight lines. Fences over 6 feet or in historic downtown areas require a building permit and Design Review Committee approval.
View full Martinez rules →Key Facts Comparison
| Fact | Brentwood | Martinez |
|---|---|---|
| Front yard | 3.5 ft (42 in) max | - |
| Side/rear yard | 6 ft max | - |
| Over 6 ft | Building permit required | - |
| Visibility triangle | 3 ft max at corners | - |
| Max with permit | 8 ft | - |
| - | - |
Highlighted rows indicate differences between cities.
Brentwood FAQ
Do I need a permit for a 6-foot fence?
No permit is required for fences 6 feet or less in side/rear yards (and 3.5 feet in front yards), but you must still comply with setbacks and visibility-triangle rules. Fences over 6 feet need a building permit.
Can I build a taller fence for privacy?
Fences up to 8 feet may be permitted on interior side/rear property lines with a building permit. Taller walls typically require a zoning variance demonstrating hardship, which is a discretionary approval.
Martinez FAQ
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