What is the residential decibel limit in San Francisco, CA?

Daytime limit: 55 dBA (interior, fixed sources, 7AM-10PM); 5 dBA above ambient (exterior). Nighttime limit: 45 dBA (interior, fixed sources, 10PM-7AM); 5 dBA above ambient (exterior). Interior noise from fixed sources measured with windows open. Ambient is the lowest sound level repeating over a 10-minute period, with a minimum of 35 dBA for interior residential and 45 dBA elsewhere. Powered construction equipment cannot exceed 80 dBA at 100 feet.

Who do I call for a noise complaint in San Francisco, CA?

For non-emergencies, contact the police at 415-553-0123. For code violations, contact Code Enforcement at (628) 652-3200 (DBI general inquiries), sfdbi.org/filing-complaint (to file complaints).

San Francisco, CA Noise Ordinance

Quiet Hours: 10:00 p.m. to 7:00 a.m.

Residential Decibel Limit: 55 dBA (interior, fixed sources, 7AM-10PM); 5 dBA above ambient (exterior) (Day) / 45 dBA (interior, fixed sources, 10PM-7AM); 5 dBA above ambient (exterior) (Night)

Summary: San Francisco, CA noise ordinances, detailed in Article 29 of the Municipal Code, prohibit excessive noise from various sources. Quiet hours for human and animal-related noise are generally 10:00 p.m. to 7:00 a.m., with specific decibel limits for residential and commercial areas. Construction activities have restricted hours and noise levels.

Local Noise Laws

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