VERIFIED 2026

San Luis Obispo, CA
Noise Code

The official quiet hours, decibel limits, and enforcement protocols for San Luis Obispo, CA.

Ordinance Summary

San Luis Obispo, CA noise ordinances, detailed in Municipal Code Chapter 9.12 "Noise Control," are a 24/7 regulation. Noise is prohibited if plainly audible 50 feet from the source between 7 AM and 10 PM, and across property lines from 10 PM to 7 AM. Specific decibel limits apply to interior residential and noise-sensitive uses.

Quiet Hours

10:00 PM - 7:00 AM

Police Non-Emergency

(805) 781-7312

Decibel Limits

Day
0dB
Night
0dB

"Hourly Leq and Maximum Lmax apply to noise-sensitive uses as per City of San Luis Obispo 1996 data. Interior multifamily residential limits are 45 dBA (day) and 40 dBA (night). Limits are reduced by 5 dB for steady tones, repetitive noise, music, or speech."

Measure Noise Levels Instantly

Use our free browser-based decibel meter to check if your neighbors are violating the San Luis Obispo, CA code.

Specific Noise Restrictions

1
Construction

Construction and demolition activities at residential properties are restricted to between 7:00 a.m. and 7:00 p.m. daily, except Sundays and legal holidays. [cite: 19 in previous search]

2
Amplified Sound

Operating loudspeakers or similar devices is prohibited between 10:00 p.m. and 7:00 a.m. if it creates a noise disturbance across a residential real property line or violates general exterior noise limits. [cite: 19 in previous search]

3
Animals

It is prohibited to keep or permit any animals that, by any sound or cry, disturb the peace and comfort of any neighborhood or interfere with the reasonable and comfortable enjoyment of life or property.

4
Vehicles

Refuse collection vehicles are prohibited from operating between 7:00 p.m. and 6:30 a.m. within or adjacent to residential areas. The operation of motorized recreational vehicles off public rights-of-way, and the repair/testing of vehicles, motorboats, or aircraft, cannot create noise levels that violate interior noise standards or cause a noise disturbance across a residential property line.

Frequently Asked Questions

Quiet Hours?

10:00 PM - 7:00 AM.

Construction?

Usually limited to daytime hours (e.g. 7am-6pm). Check 'Specific Restrictions' above.

Who to call?

Use Non-Emergency Police: (805) 781-7312.

Fines?

Commonly range from $50 to $500 for initial offenses.

Call Police