Quiet hours in Costa Mesa, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Costa Mesa Chapter XIII of the Municipal Code establishes noise control standards. Section 13-280 sets exterior noise standards for residential zones with different limits for daytime and nighttime. Willfully making loud, unnecessary noise that disturbs the peace is unlawful.
Under Costa Mesa Municipal Code Section 13-277 through 13-286, the city establishes comprehensive noise control. Section 13-280 sets exterior noise standards with different thresholds for residential, commercial, and industrial zones, measured in A-weighted decibels at the property line. Section 13-281 establishes interior noise standards. It is unlawful for any person to willfully make or continue any loud, unnecessary, and unusual noise which disturbs the peace or quiet of any neighborhood or causes discomfort or annoyance to any reasonable person of normal sensitiveness. The development services director may grant temporary waivers for construction or special events. Noise complaints can be reported to the Costa Mesa Police Department or Code Enforcement.
Noise violations are subject to administrative fines and potential misdemeanor charges under the city's general penalty provisions. Repeated violations from commercial properties may result in business license review.
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Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle quiet hours.
See how Costa Mesa's quiet hours rules stack up against other locations.
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