Quiet Hours: Berkeley vs Castro Valley
How do quiet hours rules compare between Berkeley, CA and Castro Valley, CA?
Castro Valley has fewer restrictions than Berkeley.
Berkeley, CA
Alameda County
Berkeley enforces nighttime quiet hours from 10pm to 7am on weekdays and 10pm to 9am on weekends under BMC Chapter 13.40, with strict enforcement typical of this progressive city.
View full Berkeley rules →Castro Valley, CA
Alameda County
Castro Valley is unincorporated Alameda County, so noise is governed by Alameda County Code Chapter 6.60. Section 6.60.050 prohibits any radio, stereo, audio equipment, musical instrument, or device producing sound that is plainly audible at 50 feet from the source at any hour. Decibel limits in Tables 6.60.040A and 6.60.040B apply to residential and commercial zones.
View full Castro Valley rules →Key Facts Comparison
| Fact | Berkeley | Castro Valley |
|---|---|---|
| Weeknight quiet hours | 10pm-7am | - |
| Weekend quiet hours | 10pm-9am | - |
| Governing code | BMC Chapter 13.40 | - |
| Enforcement | Berkeley PD and Code Enforcement | - |
| First-offense fine | Up to 100 dollars | - |
| Jurisdiction | - | Alameda County (unincorporated) |
| Code Reference | - | Code Ch. 6.60 |
| Plainly Audible Rule | - | 50 feet anytime (Sec. 6.60.050) |
| Decibel Tables | - | 6.60.040A and 6.60.040B |
Highlighted rows indicate differences between cities.
Berkeley FAQ
Can I be cited for a barking dog at 11pm?
Yes. Animal noise after 10pm is covered under the nighttime disturbance rules and repeat complaints can lead to citations against the owner.
Are weekend hours really different?
Yes, Berkeley extends morning quiet time until 9am on Saturday, Sunday, and holidays, which is stricter than most California cities.
Castro Valley FAQ
What are Castro Valley's quiet hours?
Castro Valley follows Alameda County Code Chapter 6.60. Any radio, stereo, or audio device that is plainly audible 50 feet from the source is prohibited at any time. Tables 6.60.040A/B set decibel limits that are stricter at night (typically 10 p.m.-7 a.m.).
Who enforces noise complaints in Castro Valley?
The Alameda County Sheriff's Office handles after-hours complaints; Alameda County Environmental Health handles ongoing/stationary noise. Call non-emergency dispatch to file a complaint.
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