Quiet Hours: Brentwood vs Walnut Creek
How do quiet hours rules compare between Brentwood, CA and Walnut Creek, CA?
Brentwood and Walnut Creek have similar restriction levels.
Brentwood, CA
Contra Costa County
Brentwood's quiet hours run from 10:00 PM to 7:00 AM on weekdays and Saturdays, and 10:00 PM to 8:00 AM on Sundays and holidays. During these hours, amplified sound, power tools, and other loud activity audible at the property line is prohibited under BMC Chapter 9.32.
View full Brentwood 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 | Brentwood | Walnut Creek |
|---|---|---|
| Weekday quiet hours | 10 PM-7 AM | - |
| Sunday/holiday quiet hours | 10 PM-8 AM | - |
| First offense fine | $100 administrative citation | - |
| Repeat violation | Up to $500 or misdemeanor | - |
| Reporting | BPD non-emergency (925) 634-6911 | - |
| 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.
Brentwood FAQ
Can I do yard work before 7 AM?
No. Power equipment including mowers, blowers, and saws cannot be operated before 7 AM on weekdays/Saturdays or 8 AM on Sundays and holidays in residential zones.
What happens on the first complaint?
Officers typically issue a verbal or written warning and ask the offender to reduce noise. A second visit the same night, or a repeat complaint, can result in an administrative citation.
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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