Amplified Music & Events: Altadena vs South San Gabriel
How do amplified music & events rules compare between Altadena, CA and South San Gabriel, CA?
Altadena and South San Gabriel have similar restriction levels.
Altadena, 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 Altadena rules →South San Gabriel, CA
Los Angeles County
South San Gabriel is an unincorporated community in Los Angeles County, so amplified music is governed by County Code Title 12, Chapter 12.08 (Noise Control), not a city ordinance. Residential limits are 50 dBA daytime (7 a.m.-10 p.m.) and 45 dBA nighttime (10 p.m.-7 a.m.) at the property line under Sec. 12.08.390. Amplified-sound events on private property near residential zones require permits and are heavily restricted at night.
View full South San Gabriel rules →Key Facts Comparison
| Fact | Altadena | South San Gabriel |
|---|---|---|
| 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 Reference | - | LA County Code Ch. 12.08 |
| Residential Limit | - | 50 dBA day / 45 dBA night |
| Night Hours | - | 10:00 p.m. - 7:00 a.m. |
| Sheriff Station | - | Temple Station (626-285-7171) |
Highlighted rows indicate differences between cities.
Altadena 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.
South San Gabriel FAQ
Can I have amplified music in my South San Gabriel backyard?
Yes, but the sound at your property line cannot exceed 50 dBA between 7 a.m. and 10 p.m. or 45 dBA between 10 p.m. and 7 a.m. under LA County Code Sec. 12.08.390. Amplified DJs and live bands routinely exceed those limits and require a Public Health permit.
Who do I call about a loud party in South San Gabriel?
Call the LA County Sheriff's Temple Station at 626-285-7171 for an active disturbance. South San Gabriel is unincorporated, so the Sheriff (not a city police department) is the responding agency under Chapter 12.08.
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