Santa Clarita Quiet Hours Rules (2026): What You Need to Know

Santa Clarita Municipal Code Chapter 11.44 establishes exterior noise standards based on zoning and time of day. Nighttime is defined as 9:00 PM to 7:00 AM, during which residential zones must maintain noise levels at or below 55 dBA measured at the property boundary. During daytime hours (7:00 AM to 9:00 PM), the residential limit is 65 dBA. Commercial and manufacturing zones have higher thresholds at 80 dBA daytime and 70 dBA nighttime. At the boundary between a residential property and a commercial or manufacturing property, the noise level of the quieter zone applies.

Any noise exceeding the ambient noise limits by more than 5 decibels at the property line of residential land is deemed prima facie evidence of a violation. Adjustments apply for certain noise types: repetitive impulsive noise and steady whines receive a -5 dB correction, while intermittent daytime noise may receive +5 to +20 dB adjustments depending on duration. Loud parties involving two or more people that are disruptive to public peace due to noise, unruly behavior, excessive traffic, or illegal parking are specifically unlawful. After an initial written notice, recurrence within one year requires the responsible person to reimburse law enforcement response costs.

Noise complaints can be reported to the Santa Clarita Valley Sheriff's Station at (661) 260-4000. The city's Community Preservation Division also handles ongoing noise-related code enforcement matters.