Quiet Hours: Hayward vs Sunol
How do quiet hours rules compare between Hayward, CA and Sunol, CA?
Sunol has fewer restrictions than Hayward.
Hayward, CA
Alameda County
Hayward Municipal Code Chapter 4, Article 7 prohibits loud or disturbing noise, especially 10 PM to 7 AM in residential zones. Police enforce via HMC 4-7 et seq.
View full Hayward rules →Sunol, CA
Alameda County
Alameda County noise ordinance (Chapter 6.60) sets detailed dB limits by zone and time. Residential nighttime (10 PM–7 AM): 45 dBA for 30+ min/hr, up to 65 dBA max. Daytime (7 AM–10 PM): 50 dBA for 30+ min/hr, up to 70 dBA max. 5 dB penalty for tonal/speech/music noise.
View full Sunol rules →Key Facts Comparison
| Fact | Hayward | Sunol |
|---|---|---|
| Quiet Hours | 10 PM to 7 AM | - |
| Code | HMC Chapter 4, Article 7 | County Code Chapter 6.60 |
| Residential Day Limit | 60 dBA L50 | - |
| Residential Night Limit | 50 dBA L50 | - |
| Enforcement | Hayward PD (510) 293-7000 | - |
| Residential Night | - | 45–65 dBA (10 PM–7 AM) |
| Residential Day | - | 50–70 dBA (7 AM–10 PM) |
| Tonal Penalty | - | 5 dB reduction for tonal/music noise |
Highlighted rows indicate differences between cities.
Hayward FAQ
Can I mow my lawn at 7 AM on a weekend?
Yes, power equipment is allowed starting at 7 AM in residential zones, though courtesy suggests waiting until 8 or 9 AM on weekends.
Who do I call for a late-night noise complaint?
Call Hayward Police non-emergency at (510) 293-7000. For active disturbances, officers can issue citations on scene.
Sunol FAQ
What are the quiet hours in Alameda County?
Alameda County noise ordinance (Chapter 6.60) sets detailed dB limits by zone and time. Residential nighttime (10 PM–7 AM): 45 dBA for 30+ min/hr, up to 65 dBA max. Daytime (7 AM–10 PM): 50 dBA for 30+ min/hr, up to 70 dBA max. 5 dB penalty for tonal/speech/music noise.
What happens if I violate the noise ordinance in Alameda County?
Residential Night: 45–65 dBA (10 PM–7 AM). Residential Day: 50–70 dBA (7 AM–10 PM). Tonal Penalty: 5 dB reduction for tonal/music noise. Code: County Code Chapter 6.60.
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