Construction Hours: Costa Mesa vs Irvine
How do construction hours rules compare between Costa Mesa, CA and Irvine, CA?
Costa Mesa has fewer restrictions than Irvine.
Costa Mesa, CA
Orange County
Costa Mesa limits construction activity to 7 AM to 8 PM under CMMC Section 13-279(b). The development services director may grant temporary waivers for work outside these hours upon considering impacts to nearby communities.
View full Costa Mesa rules →Irvine, CA
Orange County
Irvine strictly limits construction to 7:00 AM-7:00 PM Monday through Friday and 9:00 AM-6:00 PM on Saturdays. No construction is permitted on Sundays or federal holidays without a temporary waiver from the Chief Building Official.
View full Irvine rules →Key Facts Comparison
| Fact | Costa Mesa | Irvine |
|---|---|---|
| Permitted Hours | 7 AM – 8 PM | - |
| Waivers | Dev Services Director may approve | Chief Building Official may grant |
| Waiver Criteria | Unusual circumstances + impact | - |
| Code Section | CMMC §13-279(b) | IMC Title 6, Div. 8, Ch. 2 |
| Permits Required | Building permits before work | - |
| Weekdays | - | 7:00 AM to 7:00 PM |
| Saturdays | - | 9:00 AM to 6:00 PM |
| Sundays/Holidays | - | No construction allowed |
Highlighted rows indicate differences between cities.
Costa Mesa FAQ
What are the construction hours in Costa Mesa?
Construction is permitted from 7 AM to 8 PM under CMMC Section 13-279(b). Work outside these hours requires a temporary waiver from the development services director.
Can I get a waiver for nighttime construction?
Yes. The development services director may grant temporary waivers for construction outside permitted hours when unusual circumstances exist and impacts are considered.
Does this apply to weekends?
The 7 AM to 8 PM construction window applies generally. Check with Code Enforcement for any additional weekend-specific restrictions in your area.
Irvine FAQ
When can construction start in Irvine?
Construction may begin at 7:00 AM on weekdays and 9:00 AM on Saturdays. No construction is allowed on Sundays or federal holidays without a waiver.
Can I get a waiver for weekend construction?
A temporary waiver for Sunday/holiday work may be granted by the Chief Building Official. Contact Building and Safety at (949) 724-6300.
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