Oakland County, MI Fire Regulations: Smoke Detectors (2026)
Key Facts
- State Statute
- MCL 125.1504c (smoke alarms); MCL 125.1504f (CO devices)
- Pre-1974 Homes
- Min. 1 single-station smoke alarm per dwelling unit
- Code Reference
- Michigan Residential Code R314
- Required Locations
- Each bedroom, outside sleeping areas, every story
- New Construction
- Hardwired + battery backup, interconnected
- CO Standard
- ANSI/UL 2034 or ANSI/UL 2075
Summary
Smoke alarms in Oakland County are required under Michigan state law MCL 125.1504c and the Michigan Residential Code R314. Owners of homes built before November 6, 1974 must install at least one single-station smoke alarm per dwelling unit. New construction and additions require hardwired, interconnected alarms in every bedroom, outside each sleeping area, and on every level.
An owner of an existing building or structure constructed before November 6, 1974, shall install 1 or more smoke alarms in that building or structure, as provided in those rules ... For a single family dwelling, 1 or 2 family detached dwelling, or multiple family dwelling, [rules require] the installation of at least 1 single-station smoke alarm in each dwelling unit.
Full Breakdown
1504c (the Stille-DeRossett-Hale Single State Construction Code Act). That statute requires owners of buildings constructed before November 6, 1974 to install at least one smoke alarm per dwelling unit. For all other residential occupancies, smoke alarms must comply with the Michigan Residential Code (MRC) Section R314 and the Michigan Building Code. Under MRC R314, smoke alarms are required: (1) inside each sleeping room; (2) outside each separate sleeping area in the immediate vicinity of bedrooms; and (3) on each additional story including basements and habitable attics.
New construction requires hardwired alarms with battery backup, interconnected so that activation of one alarm sounds all alarms. In existing dwellings, when alterations or additions requiring a permit occur, smoke alarms must be added to bring the dwelling up to current code, though battery-only units may be permitted where wiring is not exposed. 1504f at the time of construction, renovation requiring a permit, or bedroom addition; CO devices must conform to ANSI/UL 2034 or 2075. Oakland County municipalities enforce these requirements through local building departments at the time of permit inspections and rental inspections.
Violations & Fines
MCL 125.1504c does not specify a state penalty for non-installation, but rental properties failing inspection face certificate-of-occupancy denial or revocation. Selling a home without working smoke alarms can be a misdemeanor under local property maintenance codes. Civil liability exposure is substantial: a landlord whose tenant dies in a fire from a missing alarm can face wrongful-death damages.
Frequently Asked Questions
How many smoke alarms does Michigan law require?
Do I need hardwired or battery smoke alarms?
Are CO detectors required in Oakland County?
Sources & Official References
Other rules in Oakland County
Compare Oakland County to another location·View the Michigan fire regulations overview
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