Quiet hours in Simi Valley, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Simi Valley Municipal Code Chapter 22 establishes noise standards that prohibit excessive noise during nighttime hours in residential zones. The city enforces both qualitative nuisance standards and quantitative decibel limits measured at property boundaries.
Under SVMC Chapter 22 (Noise), residential zones have exterior noise limits of 55 dBA during the day (7 AM to 10 PM) and 45 dBA at night (10 PM to 7 AM). Interior limits are 45 dBA daytime and 35 dBA nighttime. The noise ordinance prohibits willfully making loud, unnecessary, or unusual noise that disturbs the peace and quiet of any neighborhood. Exemptions exist for emergency vehicles, public works operations, and city-authorized special events. Complaints are handled by the Simi Valley Police Department non-emergency line.
Noise violations are infractions under the SVMC. First offense fines start at $100, second offense $200, and third or subsequent offenses within 12 months up to $500. Repeat violations may be charged as misdemeanors with fines up to $1,000 and/or six months in jail.
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Side-by-side rule comparisons with other cities in Ventura County.
See how other cities in Ventura County handle quiet hours.
See how Simi Valley's quiet hours rules stack up against other locations.
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