VERIFIED 2026

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

415-553-0123

Decibel Limits

Day
0dB
Night
0dB

"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

1
Construction

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.

2
Amplified Sound

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.

3
Animals

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.

4
Vehicles

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.

Call Police