Construction Hours: Castaic vs Santa Monica
How do construction hours rules compare between Castaic, CA and Santa Monica, CA?
Castaic and Santa Monica have similar restriction levels.
Castaic, CA
Los Angeles County
LA County Code Section 12.08.440 restricts construction in unincorporated areas to weekdays 7 AM–7 PM and Saturdays 8 AM–5 PM. Construction is prohibited on Sundays and legal holidays. Equipment must have mufflers in good condition.
View full Castaic rules →Santa Monica, CA
Los Angeles County
Santa Monica Municipal Code Section 4.12.110 limits construction to 8 AM–6 PM Monday through Friday and 9 AM–5 PM Saturday. No construction on Sundays or holidays. High-impact equipment (pile drivers, jackhammers) is further restricted to 10 AM–3 PM weekdays only. After-hours permits available.
View full Santa Monica rules →Key Facts Comparison
| Fact | Castaic | Santa Monica |
|---|---|---|
| Code Section | §12.08.440 | - |
| Weekday Hours | 7 AM – 7 PM | - |
| Saturday Hours | 8 AM – 5 PM | - |
| Sundays/Holidays | Prohibited | - |
| Fine | Up to $1,000 | - |
| Mon–Fri | - | 8 AM – 6 PM |
| Saturday | - | 9 AM – 5 PM |
| High-Impact | - | 10 AM – 3 PM weekdays |
| Code | - | SMMC §4.12.110 |
Highlighted rows indicate differences between cities.
Castaic FAQ
When can construction happen in unincorporated LA County?
Weekdays 7 AM to 7 PM and Saturdays 8 AM to 5 PM. No construction is allowed on Sundays or legal holidays under Section 12.08.440.
Who enforces construction noise rules in unincorporated LA County?
LA County Environmental Health Division handles construction noise complaints at (626) 430-5201. The Department of Public Works also enforces building permit conditions.
Santa Monica FAQ
When can construction happen in Santa Monica?
8 AM to 6 PM Monday through Friday, 9 AM to 5 PM Saturday. No construction on Sundays or holidays. High-impact equipment like jackhammers is limited to 10 AM to 3 PM weekdays.
Can I get a permit for after-hours construction?
Yes. Apply for an After-Hours Construction Permit from the Building and Safety Division. Conditions may include noise mitigation measures and neighbor notification.
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