Construction Hours: Mountain View vs Sunnyvale
How do construction hours rules compare between Mountain View, CA and Sunnyvale, CA?
Mountain View and Sunnyvale have similar restriction levels.
Mountain View, CA
Santa Clara County
Construction noise in Mountain View is limited to 7am to 6pm weekdays and 8am to 5pm Saturdays, with no construction allowed on Sundays or major holidays.
View full Mountain View rules →Sunnyvale, CA
Santa Clara County
Sunnyvale permits construction noise Monday through Friday from 7 AM to 6 PM and Saturday 8 AM to 5 PM. No construction on Sundays or major holidays without a special permit from the Building Division.
View full Sunnyvale rules →Key Facts Comparison
| Fact | Mountain View | Sunnyvale |
|---|---|---|
| Weekday hours | 7am to 6pm | 7 AM to 6 PM |
| Saturday hours | 8am to 5pm | 8 AM to 5 PM |
| Sunday construction | Prohibited without permit | - |
| Holiday construction | Prohibited | - |
| Building Division | (650) 903-6313 | - |
| Sunday and holiday work | - | Prohibited without permit |
| After-hours permit | - | Building Division, (408) 730-7444 |
| Interior inaudible work | - | Allowed anytime |
Highlighted rows indicate differences between cities.
Mountain View FAQ
Can I use power tools in my garage on Sunday?
Only if the sound does not carry past your property line; exterior work and loud tools are prohibited on Sundays.
Do large tech campus projects follow these hours?
Yes, though some major projects have additional conditions in their use permits that may further restrict or extend hours.
Sunnyvale FAQ
Can my contractor start work at 6 AM?
No. Exterior construction noise before 7 AM on weekdays or 8 AM on Saturdays violates the ordinance and may result in a stop work order.
Are homeowners subject to the same rules?
Yes. DIY projects using power tools that are audible at the property line must observe the same hours as licensed contractors.
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