Decibel Limits: San Jose vs Santa Clara
How do decibel limits rules compare between San Jose, CA and Santa Clara, CA?
Santa Clara has fewer restrictions than San Jose.
San Jose, CA
Santa Clara County
San Jose enforces numeric decibel limits under Municipal Code Chapter 20.100, with residential zones capped at 55 dBA daytime and 50 dBA nighttime measured at the receiving property line. Commercial and industrial zones carry higher ceilings. Exceedances of 5 dBA for any 15-minute period trigger violation, and sustained exceedances prompt Code Enforcement action.
View full San Jose rules →Santa Clara, CA
Santa Clara County
Santa Clara sets decibel limits by zone under City Code Chapter 9.10: 50/55 dBA residential, 60/65 dBA commercial, and 70 dBA industrial, measured at the receiving property line.
View full Santa Clara rules →Key Facts Comparison
| Fact | San Jose | Santa Clara |
|---|---|---|
| - | - | |
| Residential Day Limit | - | 55 dBA |
| Residential Night Limit | - | 50 dBA |
| Commercial Day/Night | - | 65 / 60 dBA |
| Industrial Zone Limit | - | 70 dBA |
| Measurement Method | - | Type 2 meter at property line |
Highlighted rows indicate differences between cities.
San Jose FAQ
Santa Clara FAQ
How does Santa Clara measure noise complaints?
Code Enforcement uses Type 2 A-weighted sound level meters at the complainants property line, typically for 15 minutes of Leq readings.
What if my neighbors music is plainly audible but not over 50 dBA?
The plainly audible standard for music after 10 PM is independent and can still be a violation even below 50 dBA.
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