Quiet hours in Antioch, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Antioch enforces quiet hours from 10:00 PM to 7:00 AM on weekdays and 10:00 PM to 8:00 AM on weekends and holidays. During these hours, amplified sound, loud parties, and disturbing noises audible at property lines can result in citations under Municipal Code Chapter 4-5.
Under Antioch Municipal Code Chapter 4-5, quiet hours run from 10:00 PM to 7:00 AM Monday through Friday, with an extended morning quiet period until 8:00 AM on Saturdays, Sundays, and recognized holidays. During these hours, noise that would be acceptable during the day — including amplified music, power tools, loud conversations, and vehicle noise — may constitute a violation if audible inside a neighboring residence or at the property line. Antioch Police respond to nighttime noise complaints and can issue warnings for first offenses or citations for repeat violations. Loud party ordinances allow the city to recover response costs from the responsible party after a second response within a defined period. Habitual violators may face escalating fines and potentially misdemeanor charges under state law.
Contact your local code enforcement office for specific penalty information.
Antioch, CA
Antioch enforces the statewide 72-hour street parking limit under CA Vehicle Code 22651(k) and Antioch Municipal Code Chapter 4-5. Overnight RV parking, perm...
Antioch, CA
Antioch prohibits parking of commercial vehicles over 10,000 lbs GVWR in residential zones overnight under Antioch Municipal Code and CA Vehicle Code 22507.5...
Antioch, CA
Antioch Municipal Code Chapter 9-5 and property maintenance standards restrict RV, boat, trailer, and oversized vehicle storage in residential zones. Front-y...
Antioch, CA
Retaining walls up to 4 feet in height (measured from bottom of footing to top of wall) without surcharge typically do not require a building permit in Antio...
Antioch, CA
Antioch is one of the few Contra Costa County cities that ALLOWS the sale and use of State Fire Marshal-approved Safe and Sane fireworks from July 1 through ...
Antioch, CA
Antioch Municipal Code Chapter 9-5.3813 requires a permit to remove any protected tree, including heritage oaks 10+ inches DBH, street trees, and trees on un...
Side-by-side rule comparisons with other cities in Contra Costa County.
See how other cities in Contra Costa County handle quiet hours.
See how Antioch's quiet hours rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.