Quiet hours in Newport Beach, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Newport Beach enforces nighttime noise standards under NBMC Chapter 10.26, with lower decibel limits from 10 PM to 7 AM in residential zones. The city aggressively addresses party noise in harbor and peninsula neighborhoods.
NBMC Chapter 10.26 sets exterior noise standards that vary by zoning district and time of day. Residential zones allow approximately 55 dBA during daytime (7 AM to 10 PM) and 50 dBA during nighttime (10 PM to 7 AM), measured at the property line of the receiving property. Interior noise limits are also established. Newport Beach is particularly strict about nighttime noise in densely packed neighborhoods like Balboa Peninsula, Balboa Island, and Newport Heights where homes are close together. NBPD responds to noise complaints 24/7 at (949) 644-3717. Repeat offenders face escalating fines. The Unruly Gathering ordinance (NBMC 10.28.040) allows additional penalties when noise is associated with large parties, including cost recovery for police response.
First noise violation may result in a warning or administrative citation starting at $100. Repeat violations escalate to $250 and $500. Unruly gathering violations under NBMC 10.28.040 can carry fines of $500–$1,000 plus cost recovery for police response. Chronic violators may face misdemeanor prosecution.
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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 Newport Beach's quiet hours rules stack up against other locations.
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