Signage Rules: Antioch vs Brentwood
How do signage rules rules compare between Antioch, CA and Brentwood, CA?
Antioch and Brentwood have similar restriction levels.
Antioch, CA
Contra Costa County
Home-based businesses in Antioch are prohibited from any exterior signage identifying the business under AMC Chapter 9-5.3303(D). No window signs, yard signs, vehicle signage parked in driveway, or illumination advertising the business is allowed. The residence must appear outwardly as a residence.
View full Antioch rules →Brentwood, CA
Contra Costa County
Brentwood home occupation rules prohibit any exterior signage advertising a home-based business. The residence must retain its residential character, meaning no signs, lighted displays, window graphics, or merchandise visible from the street or adjacent properties. Violations are typically cited under the zoning code with administrative fines.
View full Brentwood rules →Key Facts Comparison
| Fact | Antioch | Brentwood |
|---|---|---|
| Exterior signs | Prohibited (AMC 9-5.3303) | - |
| Window signs | Prohibited | - |
| Vehicle signage | Permitted if personal transport | - |
| Online ads | Fully allowed | - |
| Violation fine | $100-$500 per day | - |
| - | - |
Highlighted rows indicate differences between cities.
Antioch FAQ
Can I put a small sign on my front lawn for my home bakery?
No. Any exterior signage advertising the home business is prohibited, including small yard signs. Rely on online marketing and business cards instead.
My work truck has my company logo - can I park it in the driveway?
Yes, one personally-used commercial vehicle under 1-ton GVWR may be parked on site. Enforcement issues arise when multiple branded vehicles or trailers are parked as de facto advertising.
Brentwood FAQ
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