Amplified Music & Events: Brentwood vs Martinez
How do amplified music & events rules compare between Brentwood, CA and Martinez, CA?
Brentwood and Martinez have similar restriction levels.
Brentwood, CA
Contra Costa County
Amplified music audible beyond the property line after 10:00 PM is prohibited in Brentwood under BMC Chapter 9.32. Outdoor events with amplified sound require a Special Event Permit from the city, and commercial venues in the downtown area operate under conditional use permit noise limits.
View full Brentwood rules →Martinez, CA
Contra Costa County
Amplified music in Martinez is prohibited from being plainly audible beyond 50 feet from the property line at any time, and is subject to full quiet hour restrictions from 10:00 PM to 7:00 AM weekdays and 8:00 AM weekends. Downtown commercial venues along Main Street operate under conditional use permits with specific amplified music conditions.
View full Martinez rules →Key Facts Comparison
| Fact | Brentwood | Martinez |
|---|---|---|
| Audibility standard | Plainly audible 50 ft or at property line | - |
| Nighttime cutoff | 10 PM weekdays | - |
| Special events | Permit required from City Clerk | - |
| Downtown CUP hours | Typically 10/11 PM end | - |
| Code reference | BMC 9.32 | - |
| - | - |
Highlighted rows indicate differences between cities.
Brentwood FAQ
Do I need a permit for a backyard DJ?
For a private residential party, no permit is required, but amplified music must end by 10 PM. Large events with paid tickets, food vendors, or use of public right-of-way require a Special Event Permit.
Can restaurants have live music on patios?
Yes, if their Conditional Use Permit authorizes it. Most downtown Brentwood restaurant patios have CUP conditions limiting amplified sound to specified hours, typically ending 10 PM Sun-Thu and 11 PM Fri-Sat.
Martinez FAQ
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