Dark Sky Rules: Brentwood vs El Cerrito
How do dark sky rules rules compare between Brentwood, CA and El Cerrito, CA?
Brentwood and El Cerrito have similar restriction levels.
Brentwood, CA
Contra Costa County
Brentwood's zoning and development standards include outdoor lighting requirements aimed at minimizing light pollution and glare into neighboring properties and the night sky. Fixtures on new development must generally be full-cutoff or shielded, and light trespass onto adjacent residential lots is limited.
View full Brentwood rules →El Cerrito, CA
Contra Costa County
Unincorporated Contra Costa County regulates outdoor lighting through Ordinance Code Title 8 zoning provisions and CEQA review, with stricter standards near Mt. Diablo and in rural residential areas. No comprehensive county-wide dark-sky ordinance, but shielded fixtures are commonly required.
View full El Cerrito rules →Key Facts Comparison
| Fact | Brentwood | El Cerrito |
|---|---|---|
| - | - | |
| Governing code | - | Ord. Code Title 8 + Title 24 Part 6 |
| Commercial standard | - | Shielded, downward-directed fixtures required |
| Sensitive areas | - | Mt. Diablo vicinity, Morgan Territory, Los Vaqueros |
| Residential rule | - | Must not cause nuisance to neighbors |
| Best practice | - | Full-cutoff IDA-compliant fixtures |
Highlighted rows indicate differences between cities.
Brentwood FAQ
El Cerrito FAQ
Does CCC have a dark-sky ordinance?
Not a single comprehensive one, but Title 8 zoning and CEQA review impose shielding and directional requirements for most non-residential projects, particularly in rural and open-space-adjacent areas.
My neighbor's floodlight shines into my bedroom. What can I do?
Document the impact and contact CCC Code Enforcement. Unshielded lighting creating a nuisance can be cited under zoning code. Many disputes resolve after a courtesy letter from the County.
Compare other topics
See how Brentwood and El Cerrito compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool