Smoke Detectors: Green Valley vs Tucson
How do smoke detectors rules compare between Green Valley, AZ and Tucson, AZ?
Green Valley has fewer restrictions than Tucson.
Green Valley, AZ
Pima County
Pima County requires smoke detectors per the adopted IRC. Detectors needed in every bedroom, outside sleeping areas, and on each level. New construction requires hardwired units.
View full Green Valley rules →Tucson, AZ
Pima County
Tucson requires smoke alarms in every sleeping room, outside each sleeping area, and on every level of all residences under the International Residential Code as adopted by Tucson Building Code. Interconnected hardwired alarms with battery backup are required in new construction and major remodels.
View full Tucson rules →Key Facts Comparison
| Fact | Green Valley | Tucson |
|---|---|---|
| New Construction | Hardwired, interconnected | Interconnected hardwired with battery backup |
| Existing Homes | Battery-only acceptable | - |
| Locations | Every bedroom, sleeping areas, each level | - |
| Replacement | Every 10 years | - |
| Required Locations | - | Each bedroom, outside sleeping area, each level |
| CO Alarms | - | Required with gas appliances or attached garage |
| STR Certification | - | Annual self-certification |
| Code Basis | - | IRC as adopted in Tucson Building Code |
Highlighted rows indicate differences between cities.
Green Valley FAQ
Does Pima County require smoke detectors?
Yes. The adopted IRC requires smoke detectors in all residential buildings -- every bedroom, outside sleeping areas, and on each level. New construction needs hardwired interconnected units with battery backup.
Do rental properties need smoke detectors?
Yes. Arizona landlord-tenant law (ARS 33-1364) requires landlords to provide functioning smoke detectors. Detectors must be working at the start of each tenancy.
Tucson FAQ
Do Tucson homes need CO detectors?
Yes if the home has gas appliances, a gas water heater, gas furnace, fireplace, or an attached garage. CO alarms must be placed outside each sleeping area.
Can I use 10-year sealed battery smoke alarms in Tucson?
Yes for existing homes as a replacement. New construction requires interconnected hardwired alarms with battery backup and cannot rely on battery-only alarms.
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