Signage Rules: El Cerrito vs Martinez
How do signage rules rules compare between El Cerrito, CA and Martinez, CA?
El Cerrito and Martinez have similar restriction levels.
El Cerrito, CA
Contra Costa County
Commercial signage advertising a home occupation is prohibited in unincorporated Contra Costa under Ordinance Code Chapter 82-4. The residential appearance of the dwelling must be preserved with no signs, window displays, banners, or external evidence of a business.
View full El Cerrito rules →Martinez, CA
Contra Costa County
Martinez prohibits exterior signage advertising home-based businesses in residential zones. The Zoning Ordinance's home occupation standards are explicit that the business must not be visible from the public right-of-way, which includes no window signs, yard signs, banners, or exterior lighting that identifies the business. This rule preserves residential neighborhood aesthetics and is strictly enforced.
View full Martinez rules →Key Facts Comparison
| Fact | El Cerrito | Martinez |
|---|---|---|
| Rule | No exterior business signage permitted | - |
| Vehicle signs | Commercial body signs discouraged at home | - |
| Window/banner signs | Prohibited | - |
| Online ads | Not restricted | - |
| Penalty | $100/$200/$500 admin citations | - |
| - | - |
Highlighted rows indicate differences between cities.
El Cerrito FAQ
Can I hang a small plaque with my business name?
No. Any external indication of commercial activity violates the home-occupation rules. Interior business identification not visible from the street is acceptable.
What about a logo on my work truck parked in the driveway?
A modest logo on a personal/work vehicle is generally tolerated; however, oversized body wraps or commercial trucks (>10,000 lb GVWR) parked overnight may violate residential parking and home-occupation rules.
Martinez FAQ
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