Antioch, CA Fire Regulations: Smoke Detectors (2026)
Key Facts
- Measurement
- Required in each bedroom, outside sleeping areas, and every level
- Measurement
- New construction: hardwired with battery backup, interconnected
- Measurement
- Battery-only alarms sold after July 2015 must be 10-year sealed lithium
- Measurement
- Landlords must install/maintain; tenants must notify of malfunctions
- Authority
- Seller certification required at close of escrow (Civil Code 1102.6a)
Summary
All Antioch dwellings must have working smoke alarms under California Health and Safety Code Section 13113.7 and the California Residential Code. Alarms are required in each sleeping room, outside sleeping areas, and on every level including basements. Battery-only units sold after July 2015 must be 10-year sealed lithium battery models.
(a) (1) Except as otherwise provided in this section, smoke alarms, approved and listed by the State Fire Marshal pursuant to Section 13114 at the time of installation, shall be installed, in accordance with the manufacturer’s instructions in each dwelling intended for human occupancy.
(2) For all dwelling units intended for human occupancy for which a building permit is issued on or after January 1, 2014, for alterations, repairs, or additions exceeding one thousand dollars ($1,000), the permit issuer shall not sign off on the completion of work until the permittee demonstrates that all smoke alarms required for the dwelling unit are devices approved and listed by the State Fire Marshal pursuant to Section 13114.
(3) However, if any local rule, regulation, or ordinance, adopted prior to January 1, 1987, requires installation in a dwelling unit intended for human occupancy of smoke alarms which receive their power from the electrical system of the building and requires compliance with the local rule, regulation, or ordinance at a date subsequent to the dates specified in this section, the compliance date specified in the rule, regulation, or ordinance shall, but only with respect to the dwelling units specified in this section, take precedence over the date specified in this section.
(4) Unless prohibited by local rules, regulations, or ordinances, a battery-operated smoke alarm, which otherwise met the standards adopted pursuant to Section 13114 for smoke alarms at the time of installation, satisfies the requirements of this section.
(e) A violation of this section is an infraction punishable by a maximum fine of two hundred dollars ($200) for each offense.
Full Breakdown
7 and the California Residential Code (based on the International Residential Code with California amendments) require smoke alarms in every single-family dwelling, duplex, and multi-family unit. , hallway); and on each additional story of the dwelling, including basements and habitable attics. For new construction and substantial remodels, alarms must be hardwired with battery backup and interconnected so that activation of one alarm sounds all alarms. For existing dwellings, battery-operated alarms are acceptable for retrofit, but Health and Safety Code Section 13114 mandates that battery-only smoke alarms sold, marketed, or installed in California since July 1, 2015 must have a 10-year sealed non-replaceable lithium battery and a hush feature.
7(b), and tenants are responsible for testing and notifying landlords of malfunctions. 6a, and the seller or agent must ensure working alarms are present before close of escrow. Antioch's Building Division enforces smoke alarm requirements through building permits for remodels, additions, and resales. Contra Costa County Fire Protection District also provides free smoke alarm installation and inspection services for income-qualifying households.
Frequently Asked Questions
Where do I need smoke alarms in my Antioch home?
Do I need to replace my old battery smoke alarms?
Who installs smoke alarms in a rental unit?
Sources & Official References
Other rules in Antioch
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