Smoke Detectors: Berkeley vs Sunol
How do smoke detectors rules compare between Berkeley, CA and Sunol, CA?
Berkeley and Sunol 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 →Sunol, CA
Alameda County
California Health and Safety Code 13113.7 requires smoke alarms in every bedroom, outside each sleeping area, and on every level of all dwellings in Alameda County. Alarms over 10 years old must be replaced, and new installations must be 10-year sealed lithium battery units or hardwired with battery backup.
View full Sunol rules →Key Facts Comparison
| Fact | Berkeley | Sunol |
|---|---|---|
| Smoke alarms | Every bedroom, hall, story | - |
| CO alarms | Outside sleeping areas | Required per SB 183 |
| Rental | Verified at turnover | - |
| At sale | Seller certification required | - |
| Free units | Red Cross program | - |
| Governing law | - | H&S Code 13113.7 |
| Required locations | - | Each bedroom, hall, floor |
| Max alarm age | - | 10 years |
| New alarms | - | 10-yr sealed lithium |
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.
Sunol FAQ
Do I need to replace smoke alarms when selling my home?
Yes. State law requires compliance at point of sale, including current model alarms in all required locations certified by the seller.
Who is responsible for batteries in a rental?
Landlord tests and ensures operability at move-in. Tenants must maintain batteries and notify landlord of malfunctions in writing.
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