Smoke Detectors: Goodyear vs Tempe

Does unincorporated Maricopa County require smoke detectors in homes?

Yes. Arizona Revised Statutes Section 36-1637 requires an approved smoke detector in each new residential housing unit during construction, and in any existing unit where a sleeping area is remodeled under permit. The Maricopa County Planning & Development Department enforces this through building permits and the adopted International Residential Code, which adds placement and power-source requirements under Section R314.

Who is responsible for maintaining smoke detectors in a Maricopa County rental?

Section 36-1637 places the duty on the tenant to maintain and keep the smoke detector operable. Once the tenant provides the landlord with written notice of a malfunction, the landlord is responsible for the repair. The landlord must also give the tenant written notice of the tenant's responsibilities under the statute.

Where do smoke alarms have to be installed in a new home in unincorporated Maricopa County?

Maricopa County enforces the International Residential Code Section R314 as part of its adopted building codes. R314 requires smoke alarms inside each sleeping room, outside each separate sleeping area in the immediate vicinity of bedrooms, and on every story of the dwelling, including basements. New construction units must be hard-wired with battery backup and interconnected so all alarms sound when one is triggered.

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.