Construction Hours: Concord vs Richmond
How do construction hours rules compare between Concord, CA and Richmond, CA?
Concord and Richmond have similar restriction levels.
Concord, CA
Contra Costa County
Construction activity in Concord is generally permitted Monday through Friday from 7:30 AM to 6:00 PM and Saturdays from 8:00 AM to 5:00 PM. Construction is prohibited on Sundays and city-recognized holidays without a special permit. These hours apply to both commercial and residential projects, including homeowner DIY work that generates significant noise.
View full Concord rules →Richmond, CA
Contra Costa County
Construction and demolition activity in Richmond is generally permitted Monday through Friday 7:00 AM to 7:00 PM and Saturday 9:00 AM to 5:00 PM. Construction on Sundays and federal holidays is prohibited except for emergency work or with a city-issued variance. Violations are enforced through RMC Chapter 9.52 and the Building Division.
View full Richmond rules →Key Facts Comparison
| Fact | Concord | Richmond |
|---|---|---|
| Weekday Hours | 7:30 AM to 6:00 PM | - |
| Saturday Hours | 8:00 AM to 5:00 PM | - |
| Sundays/Holidays | Prohibited without special permit | - |
| Air Quality Rule | BAAQMD Rule 403 (dust control) | - |
| Enforcement | Building Division / Code Enforcement | - |
| - | - |
Highlighted rows indicate differences between cities.
Concord FAQ
Can I do construction on Sundays in Concord?
No. Sunday construction is prohibited unless a special exception is granted by the Building Official for emergency or time-sensitive work.
Do DIY homeowners have to follow construction hours?
Yes. Homeowners performing their own noisy renovations must follow the same construction-hour limits as licensed contractors.
What if construction exceeds noise limits during permitted hours?
Construction must still comply with the city's daytime dBA caps. Persistent excessive noise can result in citations even during allowed hours.
Richmond FAQ
Can I work on my own home on Sunday?
Quiet indoor work is generally fine, but exterior construction or any work audible at the property line on Sunday violates RMC 9.52.
How do I request a construction noise variance?
Apply through the Richmond Building Division with project justification, neighbor notification, and proposed hours. Fees apply.
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