How San Francisco Handles Noise Ordinances: A Practical Guide
San Francisco maintains 177 local ordinances across all categories, and 6 of those deal specifically with noise ordinances. Here is a breakdown of what the city actually requires, what is prohibited, and where San Francisco falls on the strict-to-permissive spectrum compared to other cities.
Leaf Blower Rules
San Francisco bans the sale and use of gasoline-powered leaf blowers under Health Code Article 29 and aligns with California AB 1346, which phased out small off-road gasoline engines beginning in 2024.
Key details: Local ban: Health Code Article 29. State sales ban: AB 1346 (2024). Allowed alternative: Electric/battery only. Complaint route: 311.
Use of a gas leaf blower triggers fines starting at $100 for individuals and $500 for commercial operators, escalating to $1,000 per occurrence for repeat offenders.
Amplified Music & Outdoor Sound
Playing amplified music or sound equipment audible 50 feet away between 10 p.m. and 7 a.m. is a prima facie Police Code violation citywide.
Key details: Quiet hours: 10:00 p.m. to 7:00 a.m.. Audibility threshold: Plainly audible at 50 feet. Enforcement: Misdemeanor + DPH admin citation. Applies to: Radios, instruments, jukeboxes, PA gear.
Misdemeanor under Sec. 49(d), with criminal penalties under Sec. 1060.25(a) and civil penalties under Sec. 1060.25(c); DPH may also issue administrative citations under Admin. Code Ch. 100, with each day a separate violation.
Quiet Hours
San Francisco caps fixed-source indoor noise in dwelling units at 45 dBA between 10 p.m. and 7 a.m., rising to 55 dBA during daytime hours, to protect sleep.
Key details: Nighttime limit: 45 dBA, 10pm-7am. Daytime limit: 55 dBA, 7am-10pm. Applies to: fixed mechanical noise sources.
A fixed noise source that exceeds 45 dBA overnight or 55 dBA daytime inside a residential dwelling unit violates Sec. 2909(d), enforced by the Department of Public Health.
Construction Hours
San Francisco bars construction, demolition, and excavation work between 8:00 p.m. and 7:00 a.m. when its noise tops the ambient level by 5 dBA, unless a special night work permit is granted.
Key details: Restricted hours: 8:00 p.m.-7:00 a.m.. Noise threshold: ambient + 5 dBA. Permit issuer: Public Works / Building Inspection. Exempt: Emergency work.
Conducting unpermitted night construction that exceeds the ambient noise level by 5 dBA at the nearest property plane violates Section 2908 and is enforced by Public Works or Building Inspection.
Decibel Limits
On San Francisco residential property, machines, devices, or music cannot exceed the ambient sound level by more than five decibels at any point outside the property line.
Key details: Residential limit: ambient + 5 dBA. Measurement point: outside property plane. Enforcer: Dept. of Public Health.
Producing noise more than 5 dBA above ambient outside the property plane violates Sec. 2909(a) and is enforced by the Department of Public Health's noise program.
Barking Dogs
San Francisco bans keeping a dog that barks continuously for 10 minutes and disturbs others, letting neighbors request a police citation against the owner.
Key details: Bark threshold: 10 continuous minutes. Complaint radius: 300 feet, 2 households. Complaint process: Signed affidavit to police. Provocation defense: No violation if dog was teased.
Keeping a Barking Dog under the Sec. 41 definition violates Sec. 41.12(d); two disturbed neighbors from different households within 300 feet can sign an affidavit under Sec. 41.12(e) to request a police citation against the dog's owner or guardian.
The Bottom Line
San Francisco's noise ordinances rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming San Francisco is broadly strict or permissive.
Keep in mind that San Francisco can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.