Dearborn, MI Fire Regulations: Smoke Detectors (2026)
Key Facts
- Applies to
- Newly constructed dwellings
- Wiring
- Hardwired and interlocked
- Locations
- Every sleeping area, basement landing
- Code chapter
- Ch. 5, Electrical Code
- Testing
- Independent lab listed
Summary
New homes and apartments in Dearborn must have interlocked, hardwired smoke detectors, UL-listed and wired to a lighting circuit, in every sleeping area and at the basement landing, under the city's electrical code.
Every newly constructed single or multiple dwelling unit shall be provided with smoke detectors. The detectors shall be approved or listed by a recognized independent testing laboratory and, when actuated, shall provide an alarm suitable to warn the occupants within the individual dwelling unit. A minimum of one smoke detector shall be located in each of the following areas:
a. In each apartment, suite or sleeping area.
b. In the basement at the head of the landing leading to the ground level floor.
c. Any other areas of the dwelling which, by reason of the dwelling layout, would not be protected by detectors located in subsection a. or b. above. Each detector shall be interlocked and electrically wired and connected to any lighting circuit. (Ord. No. 91-511, § 6.17, 2-13-91)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-07: Code: Updated through: July 22, 2026 | Zoning: Updated through: July 22, 2026).
Full Breakdown
Dearborn's electrical code sets wiring-specific smoke detector requirements for newly constructed dwellings, layered on top of the general occupancy standard in Chapter 11. Under Sec. 5-1281(20), every newly constructed single or multiple dwelling unit needs listed smoke detectors in each apartment, suite, or sleeping area, plus one at the head of the basement stairway landing, and in any other area a layout leaves unprotected. Detectors must be hardwired, interlocked with each other, and connected into a lighting circuit rather than battery-only. Building officials verify compliance during the electrical inspection required for new construction and remodeling permits.
Violations & Fines
Noncompliant wiring fails the required electrical inspection under Chapter 5 and must be corrected before the city signs off on the construction permit.
Frequently Asked Questions
Does Dearborn require hardwired smoke detectors in new homes?
Does this hardwiring mandate apply to existing homes too?
Sources & Official References
Other rules in Dearborn
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