Noise from Specific Sources in San Diego, CA: What Residents Actually Need to Know
If you live in San Diego or are thinking about moving there, noise from specific sources are one of those things you probably won't think about until they affect you directly. San Diego has 3 specific rules on the books covering different aspects of noise from specific sources, and some of them might surprise you.
Low-Frequency Bass Limits
San Diego treats bass you can feel as its own violation. Under SDMC § 59.5.0502(b)(2)(B), a sound amplifier that makes a person aware of vibration 50 feet from the source is a prima facie noise violation, at any hour of day or night.
Key details: Vibration test distance: 50 feet. Applies: Any hour, day or night. Max penalty: $1,000 fine / 6 months jail. Enforcement: Equipment may be confiscated.
A violation is a misdemeanor under SDMC § 59.5.0604: up to a $1,000 fine, up to 6 months in jail, or both. Officers may also confiscate the amplifying equipment as evidence under § 59.5.0502(3)(A).
Bar & Nightclub Noise
San Diego bars and nightclubs holding a 2 a.m.-6 a.m. after-hours entertainment permit must observe every noise-abatement law in Chapter V, per SDMC §33.0810, letting the Police Chief attach noise conditions or pull the permit for violations.
Key details: Applies to: 2am-6am permit holders. Duty: follow all Chapter V noise laws. Conditions set by: Chief of Police. Enforcement: permit revocation possible.
Failing to observe noise-abatement laws is grounds for after-hours permit conditions, suspension, or revocation by the Chief of Police; the underlying Chapter V noise violation is separately a misdemeanor.
Car Alarm Limits
San Diego caps how long a burglar alarm, including a car alarm, can blare. SDMC § 59.5.0503 bans any audible alarm that can't shut off on its own within 20 minutes, and lets police disconnect one themselves while it's sounding.
Key details: Auto-shutoff required within: 20 minutes. Covers: Structures and motor vehicles. Police authority: May disconnect alarm directly. Owner must: Display contact phone number.
A violation is prosecuted under SDMC § 59.5.0604 as a misdemeanor: up to a $1,000 fine, up to 6 months in jail, or both, with each day of noncompliance a separate offense.
The Bottom Line
San Diego's noise from specific sources 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 Diego is broadly strict or permissive.
All of the above reflects San Diego's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.