Smoke Detectors: Phoenix vs Tempe

Where do smoke alarms have to be installed in a Phoenix home?

Under the 2018 Phoenix Building Construction Code (Chapter 9, IRC R314), smoke alarms are required inside every bedroom, in the hallway or area immediately outside each sleeping area, and on every story of the dwelling, including basements and habitable attics. All alarms within a single unit must be interconnected so one alarm triggers them all. Confirm details with Phoenix Planning & Development at 602-262-7811.

What kind of smoke alarm batteries does Phoenix require?

Phoenix Ordinance G-5898 (effective April 18, 2014) requires that battery-operated smoke alarms sold or installed in the city be UL-listed units with a sealed, non-removable 10-year lithium battery. No smoke alarm may be used more than 10 years past its date of manufacture; check the back of the unit and replace if older. For rental homes, A.R.S. § 36-1637 makes the landlord responsible for repairs after written tenant notice.

Where do smoke alarms have to be installed in a Tempe rental home?

Under Tempe's Rental Housing Code, which adopts IRC Section R314 and IBC 907, smoke alarms are required inside every bedroom, in the hallway or area immediately outside each sleeping area, and on every story including basements and habitable attics. Wall-mounted alarms must sit 4–12 inches from the ceiling; ceiling units at least 4 inches from any wall. The owner must install, maintain, and verify operation before each new tenancy.

Who is responsible for smoke detectors in a Tempe rental — landlord or tenant?

Both. Under Tempe's Rental Housing Code, the owner is responsible for installation, replacing batteries annually if battery-operated, keeping records, and verifying all detectors are operational before re-occupancy. Under A.R.S. § 36-1637, the tenant must maintain and test the detector during occupancy and give written notice of any malfunction; the landlord must then repair it. Reach Tempe Code Compliance at 480-350-8372.