Quiet Hours: San Leandro vs Sunol
How do quiet hours rules compare between San Leandro, CA and Sunol, CA?
San Leandro and Sunol have similar restriction levels.
San Leandro, CA
Alameda County
San Leandro quiet hours run 10 PM to 7 AM weekdays and 10 PM to 9 AM weekends under Municipal Code Title 4, Chapter 4-28 (Noise Ordinance).
View full San Leandro 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 | San Leandro | Sunol |
|---|---|---|
| Weekday quiet hours | 10 PM to 7 AM | - |
| Weekend quiet hours | 10 PM to 9 AM | - |
| Code section | SLMC Chapter 4-28 | - |
| Nighttime limit | 45 dBA residential | - |
| First fine | Warning then 100 to 500 | - |
| 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 |
Highlighted rows indicate differences between cities.
San Leandro FAQ
Can I be cited without a sound meter?
Yes. San Leandro uses a plainly audible standard, so an officer can cite noise heard beyond 50 feet or inside another residence.
Do quiet hours differ on weekends?
Yes. Mornings on Saturday and Sunday extend until 9 AM before normal daytime noise is allowed.
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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