Smoke Detectors: Berkeley vs Hayward
How do smoke detectors rules compare between Berkeley, CA and Hayward, CA?
Berkeley and Hayward have similar restriction levels.
Berkeley, CA
Alameda County
Berkeley requires working smoke alarms in every bedroom, hallway, and story, plus CO alarms near sleeping areas. Required at sale, rental turnover, and with any permit.
View full Berkeley rules →Hayward, CA
Alameda County
Hayward requires working smoke alarms in every bedroom, hallway, and level per California Building Code and Health and Safety Code 13113.7.
View full Hayward rules →Key Facts Comparison
| Fact | Berkeley | Hayward |
|---|---|---|
| Smoke alarms | Every bedroom, hall, story | - |
| CO alarms | Outside sleeping areas | Required with gas or garage |
| Rental | Verified at turnover | - |
| At sale | Seller certification required | - |
| Free units | Red Cross program | - |
| Required locations | - | Bedrooms, halls, each level |
| Battery type | - | 10-yr sealed lithium |
| Replacement | - | Every 10 years |
| Rental inspections | - | Verified at turnover |
Highlighted rows indicate differences between cities.
Berkeley FAQ
Are hardwired alarms mandatory in my older Berkeley home?
Hardwiring is required for new construction and remodels. Existing homes may use 10-year sealed lithium battery alarms if meeting UL 217 standards, but any permit work triggers upgrade requirements.
Do I need CO alarms if my home is all-electric?
Only if you have an attached garage. Fully electric homes with no attached garage and no fuel-burning fireplace are exempt under SB 183, though alarms are still recommended.
Hayward FAQ
Are battery-only alarms still legal?
Yes in existing homes, but replacements must be 10-year sealed lithium units. New construction requires hardwired interconnected alarms.
Who is responsible in a rental?
Landlords must install and test at turnover; tenants must notify the landlord of any failure.
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