Smoke Detectors: Brentwood vs Oakley
How do smoke detectors rules compare between Brentwood, CA and Oakley, CA?
Oakley has fewer restrictions than Brentwood.
Brentwood, CA
Contra Costa County
California Health & Safety Code Section 13113.7 and Title 24 require working smoke alarms in every bedroom, outside sleeping areas, and on each floor of all Brentwood dwellings. Units built or substantially remodeled since 2015 must have 10-year sealed lithium battery or hardwired interconnected alarms. Carbon monoxide alarms are also mandatory under SB 183.
View full Brentwood rules →Oakley, CA
Contra Costa County
California State Fire Marshal regulations require working smoke alarms in every bedroom, outside each sleeping area, and on every floor of all dwellings. Alarms installed after 2015 must be 10-year sealed-battery models. Oakley enforces installation at point of sale and during permitted remodels. Carbon monoxide alarms are required in any home with fuel-burning appliances or attached garages under Health & Safety Code Section 13261.
View full Oakley rules →Key Facts Comparison
| Fact | Brentwood | Oakley |
|---|---|---|
| - | - | |
| Fact | - | Required in every bedroom, outside sleeping areas, each floor |
Highlighted rows indicate differences between cities.
Brentwood FAQ
Oakley FAQ
Do I need to upgrade my older smoke alarms?
If your alarms were installed before 2015 and use replaceable batteries, they still must be functional but may be replaced with 10-year sealed-battery models at next replacement. All alarms should be replaced every 10 years regardless.
Are carbon monoxide alarms really required in all homes?
Yes, if your home has any fuel-burning appliance (gas furnace, water heater, stove, fireplace) or an attached garage. Only all-electric homes without attached garages are exempt.
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