San Jose, CA Fire Regulations: Smoke Detectors (2026)
Key Facts
- Placement
- Alarm in every bedroom, outside sleeping areas, and on each story
- Battery Type
- 10-year sealed-battery units required for replacements
- New Construction
- Hardwired interconnected alarms in new construction
- CO Alarms
- Required with any fuel appliance or attached garage
- Landlord Duty
- Landlord compliance required at start of tenancy
Summary
San Jose enforces California Building Code and Health & Safety Code smoke alarm requirements, mandating working alarms in every bedroom, outside each sleeping area, and on each level of a home. Carbon monoxide alarms are also required. Hardwired interconnected alarms are standard in new construction and major remodels.
(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.
(d) (2) The owner of a hotel, motel, lodging house, apartment complex, or other multiple-dwelling complex in which units are rented or leased, and commencing January 1, 2014, the owner of a single-family dwelling that is rented or leased, shall be responsible for testing and maintaining alarms required by this section as follows:
(A) An owner or the owner's agent may enter any dwelling unit, efficiency dwelling unit, guest room, and suite owned by the owner for the purpose of installing, repairing, testing, and maintaining single station smoke alarms required by this section.
(B) At the time that a new tenancy is created, the owner shall ensure that smoke alarms are operable. The tenant shall be responsible for notifying the manager or owner if the tenant becomes aware of an inoperable smoke alarm within his or her unit. The owner or authorized agent shall correct any reported deficiencies in the smoke alarm and shall not be in violation of this section for a deficient smoke alarm when he or she has not received notice of the deficiency.
(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 California Building Code §R314 require smoke alarms in every sleeping room, in the hallway immediately outside sleeping areas, and on every story of a dwelling including basements. In new construction and when remodels exceed $1,000 with permits, alarms must be hardwired to the building's electrical system with battery backup and interconnected so that any alarm triggers all alarms. For existing homes, battery-only alarms are acceptable if they have 10-year sealed lithium batteries meeting California's 2015 requirements. Carbon monoxide alarms are required under CA H&S §17926 in any dwelling with a fuel-burning appliance, attached garage, or fireplace; CO alarms must be in hallways outside sleeping rooms and on every level.
Landlords are required to install and maintain alarms at the start of each tenancy and when smoke alarms are replaced must use 10-year sealed-battery units. San Jose sale disclosure (Real Estate Transfer Disclosure Statement) requires the seller to confirm smoke and CO alarm compliance. San Jose Fire conducts free home visits and sometimes distributes alarms through community outreach. Violations are typically addressed through correction notices but can escalate to fines for rental properties that fail health and safety inspections.
Violations & Fines
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact San Jose code enforcement directly for current fines, enforcement procedures, and hearing options.
Frequently Asked Questions
How many smoke alarms do I need?
Do I need CO detectors?
Sources & Official References
Other rules in San Jose
California rules heatmap·Compare San Jose to another location·View the California fire regulations overview
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Smoke Detectors in Nearby Cities
How other cities in Santa Clara County handle smoke detectors.