Smoke Detectors: Castro Valley vs San Leandro
How do smoke detectors rules compare between Castro Valley, CA and San Leandro, CA?
San Leandro has fewer restrictions than Castro Valley.
Castro Valley, 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 Castro Valley rules →San Leandro, CA
Alameda County
San Leandro follows California Building Code requirements: working smoke alarms in every bedroom, hallway, and on each floor. 10-year sealed batteries required for replacements.
View full San Leandro rules →Key Facts Comparison
| Fact | Castro Valley | San Leandro |
|---|---|---|
| Governing law | H&S Code 13113.7 | - |
| Required locations | Each bedroom, hall, floor | - |
| Max alarm age | 10 years | - |
| New alarms | 10-yr sealed lithium | - |
| CO alarms | Required per SB 183 | - |
| Required | - | Every bedroom and hall |
| Battery | - | 10-year sealed |
| CO Alarms | - | Also required |
| Rentals | - | Certify at turnover |
| Authority | - | CA H&S 13113.7 |
Highlighted rows indicate differences between cities.
Castro Valley 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.
San Leandro FAQ
Do landlords have to install smoke alarms in San Leandro?
Yes. Landlords must provide working smoke and CO alarms at the start of every new tenancy. Tenants maintain batteries during occupancy.
Who enforces this in San Leandro?
San Leandro code enforcement at (510) 577-3394 handles most complaints. Alameda County agencies handle regional issues.
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