Quiet Hours: Antioch vs Walnut Creek
How do quiet hours rules compare between Antioch, CA and Walnut Creek, CA?
Antioch and Walnut Creek have similar restriction levels.
Antioch, CA
Contra Costa County
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.
View full Antioch rules →Walnut Creek, CA
Contra Costa County
Walnut Creek observes nighttime quiet hours from 10:00 PM to 7:00 AM daily under Municipal Code Chapter 4-3, during which noise audible at a residential property line must not exceed 50 dBA and no loud or disturbing sounds are permitted.
View full Walnut Creek rules →Key Facts Comparison
| Fact | Antioch | Walnut Creek |
|---|---|---|
| Weekday Quiet Hours | 10:00 PM – 7:00 AM | - |
| Weekend/Holiday | 10:00 PM – 8:00 AM | - |
| Complaint Line | Antioch PD (925) 778-2441 | - |
| Cost Recovery | Loud party response fees may apply | - |
| Code Reference | AMC Ch. 4-5 | - |
| Nighttime quiet period | - | 10:00 PM - 7:00 AM daily |
| Nighttime dBA limit | - | 50 dBA residential |
| Weekend mornings | - | Same 7 AM start (construction differs) |
| Variance available | - | Yes, via Community Development |
| Typical fine | - | $100 first offense |
Highlighted rows indicate differences between cities.
Antioch FAQ
Can I be fined for a loud party after one warning?
Yes. Antioch has a loud party response ordinance allowing the city to recover police response costs for subsequent responses to the same address within a defined period, in addition to citation fines.
Do quiet hours apply to apartments and condos?
Yes, quiet hours apply citywide including multifamily housing. HOAs and landlords may also impose stricter private quiet hour rules in lease agreements or CC&Rs.
Walnut Creek FAQ
Are weekend quiet hours different in Walnut Creek?
Quiet hours themselves are 10 PM-7 AM every day, but construction activity has stricter weekend and Sunday rules covered separately under the construction-hours ordinance.
Can I get a variance for an outdoor wedding that runs past 10 PM?
Yes. Walnut Creek issues temporary noise variances through the Community Development Department for special events; apply at least 30 days in advance and expect conditions on amplified-sound cutoff times.
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