Amplified Music & Events: Castaic vs Santa Monica
How do amplified music & events rules compare between Castaic, CA and Santa Monica, CA?
Castaic and Santa Monica have similar restriction levels.
Castaic, CA
Los Angeles County
Amplified music and sound devices in unincorporated LA County are regulated under Chapter 12.08 (Noise Control). Residential areas: 45 dB nighttime (10 PM-7 AM), 50 dB daytime. Sound amplifying equipment in or within 500 ft of residential zones is restricted for commercial purposes.
View full Castaic rules →Santa Monica, CA
Los Angeles County
Amplified music in Santa Monica is regulated under SMMC Ch. 4.12. Businesses with amplified music near residential zones must cease outdoor activities between 11 PM and 6 AM. Nightclubs require double-door vestibules and double-paned glass.
View full Santa Monica rules →Key Facts Comparison
| Fact | Castaic | Santa Monica |
|---|---|---|
| Residential Night | 45 dB (10 PM-7 AM) | - |
| Residential Day | 50 dB (7 AM-10 PM) | - |
| Commercial Use | Restricted near residential | - |
| Reference | Title 12, Chapter 12.08 | - |
| Code | - | SMMC Ch. 4.12 |
| Near Residential | - | No outdoor music 11 PM - 6 AM |
| Nightclubs | - | Double-door vestibules required |
| Windows | - | Double-paned glass required |
Highlighted rows indicate differences between cities.
Castaic FAQ
What are the noise hours for amplified music in LA County?
Amplified sound must not be audible beyond the property line between 10 PM and 7 AM weekdays, or 10 PM and 8 AM weekends. Daytime amplified sound cannot exceed 5 dB above ambient noise at the property line.
Do I need a permit for a party with amplified music?
Not for an occasional private party that stays within noise limits. Large events or recurring parties may require a Temporary Use Permit from the Department of Regional Planning at (213) 974-6411.
How do I file a noise complaint about amplified music?
Call the LA County Sheriff's non-emergency line at (323) 267-4800 for immediate noise disturbances. For ongoing issues, file a code enforcement complaint at (888) 756-2700.
Santa Monica FAQ
Can I play loud music at home in Santa Monica?
Music must not exceed noise zone limits (50 dBA at night, 55 dBA daytime in residential zones). Enforcement uses a reasonable person standard.
What happens if my neighbor plays loud music after 10 PM?
Contact Code Enforcement or SMPD. The 50 dBA nighttime residential limit applies, and the catch-all provision of §4.12.025 covers unreasonable noise.
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