Amplified music rules in Altadena, CA — also called sound permit, PA system, or live music ordinances — set decibel limits, time-of-day restrictions, and when permits are required.
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.
Amplified music and sound devices in unincorporated LA County are regulated under Chapter 12.08 of the county code. Amplified sound audible beyond the property line between 10 PM and 7 AM on weekdays (10 PM-8 AM weekends) is prohibited. Daytime amplified sound must not exceed 5 dB above ambient noise levels at the property line. Events with amplified music may require a Temporary Use Permit from the Department of Regional Planning. Commercial venues need a Conditional Use Permit that typically includes noise conditions. Enforcement is through the LA County Sheriff's Department and code enforcement.
First noise complaint may result in a verbal warning from the Sheriff's Department. Second complaint within 12 months: citation with fines of $100-$500. Third and subsequent: fines up to $1,000. Violations of Temporary Use Permit noise conditions can result in permit revocation. Chronic noise nuisances may trigger civil abatement proceedings under Title 11. Event organizers may be held liable for attendee noise.
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Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle amplified music & events.
See how Altadena's amplified music & events rules stack up against other locations.
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