Outdoor Lighting in Brentwood, CA: What Residents Actually Need to Know

If you live in Brentwood or are thinking about moving there, outdoor lighting are one of those things you probably won't think about until they affect you directly. Brentwood has 2 specific rules on the books covering different aspects of outdoor lighting, and some of them might surprise you.

Light Trespass & Shielding

Brentwood caps outdoor lighting spill from every office and commercial property at one-half foot-candle measured at the lot line, requires exposed fixtures to be shielded, and treats flickering or intense light like a nuisance under the city's zoning performance standards for the CO, COB, COR, CR, C-1, C-2 and C-3 zones.

Key details: Limit at lot line: One-half foot-candle maximum illumination. Applies to: CO, COB, COR, CR, C-1, C-2, C-3 zones. Fixture rule: Exposed light sources must be shielded. Citation: Brentwood Municipal Code § 17.200.004(B)(2). Default penalty: Misdemeanor, up to $1,000 fine or 6 months.

Brentwood Municipal Code § 1.20.010 makes a violation of any code provision, including a zoning performance standard, a misdemeanor by default, punishable by a fine up to $1,000, up to six months in jail, or both, unless the city attorney charges it as an infraction ($100 first offense, $200 second, $500 each additional offense within twelve months); every day the light trespass continues is a separate violation.

Dark Sky Rules

Brentwood has no residential dark-sky ordinance, but its zoning code forces outdoor lighting in office, commercial and industrial zones to stay on-site. Brentwood Municipal Code § 17.200.004(B)(2) caps glare at one-half foot-candle measured at the lot line and requires every exposed light source to be shielded, with flickering or intense fixtures controlled so they do not become a nuisance across property lines.

Key details: Glare limit: 0.5 foot-candle at the lot line. Applies to: office, commercial and industrial zones. Shielding duty: exposed light sources must be shielded. Penalty: misdemeanor, up to $1,000 fine, 6 months jail. Enforcing agency: Community Development Department.

Violating this glare standard is a misdemeanor under Brentwood Municipal Code § 1.20.010, punishable by a fine of up to $1,000, imprisonment of up to six months, or both, though the city attorney has discretion to charge a first offense as an infraction instead. The community development department enforces zoning performance standards on a complaint or inspection basis and typically requires re-aiming, shielding retrofits, or fixture replacement before pursuing a citation.

The Bottom Line

Brentwood's outdoor lighting rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Brentwood is broadly strict or permissive.

This guide is based on Brentwood's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.