San Francisco, CA
Noise Code
The official quiet hours, decibel limits, and enforcement protocols for San Francisco, CA.
Ordinance Summary
San Francisco, CA noise ordinances, primarily found in Article 29 of the Police 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. Specific decibel limits are set for residential and commercial areas, relative to ambient noise levels. Construction and amplified sound also have restricted operating hours and volume limits.
Quiet Hours
10PM-7AM
Police Non-Emergency
415-553-0123Decibel Limits
"Limits are relative to ambient noise levels, with minimum ambient levels of 35 dBA for interior residential and 45 dBA for other locations."
Measure Noise Levels Instantly
Use our free browser-based decibel meter to check if your neighbors are violating the San Francisco, CA code.
Specific Noise Restrictions
Unlawful between 8:00 p.m. and 7:00 a.m. if noise exceeds ambient by 5 dBA at the nearest property plane, unless a special permit from Public Works or Building Inspection is granted. Powered equipment is limited to 80 dBA at 100 feet; impact tools require mufflers and shields.
Outdoor sound amplifying equipment may be operated only between 9:00 a.m. and 10:00 p.m., with exceptions by the Entertainment Commission. Volume must not be audible more than 250 feet from the furthest audience member and not be unreasonably loud or disturbing. Permits are required for outdoor amplified sound.
Human and animal-related noise is not permitted between 10:00 p.m. and 7:00 a.m. if unreasonable. A barking dog is defined as barking continuously for 10 minutes or longer.
Unlawful to repair, rebuild, or test motor vehicles in residential areas causing unnecessary, excessive, or offensive noise. Vehicle horns are for emergency warning purposes only.
Frequently Asked Questions
Quiet Hours?
10PM-7AM.
Construction?
Usually limited to daytime hours (e.g. 7am-6pm). Check 'Specific Restrictions' above.
Who to call?
Use Non-Emergency Police: 415-553-0123.
Fines?
Commonly range from $50 to $500 for initial offenses.
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