Smoke Detectors: Redmond vs Renton
How do smoke detectors rules compare between Redmond, WA and Renton, WA?
Redmond and Renton have similar restriction levels.
Redmond, WA
King County
Smoke alarms are required in every sleeping room, outside sleeping areas, and on every floor of Redmond homes per IRC R314 as adopted by RMC 15.04, with CO alarms required under RCW 19.27.530.
View full Redmond rules →Renton, WA
King County
Renton requires smoke alarms in every sleeping area and on each floor under the WA Residential Code (RCW 19.27) and IFC via RMC 4-5-070. Rentals need working alarms at each tenancy per RCW 48.48.140.
View full Renton rules →Key Facts Comparison
| Fact | Redmond | Renton |
|---|---|---|
| Required Locations | Every bedroom, outside bedrooms, each floor | - |
| CO Alarm Law | RCW 19.27.530 | - |
| Code | IRC R314 via RMC 15.04 | WA Residential Code, IFC 907 via RMC 4-5-070 |
| Rental Rule | Required before occupancy | - |
| Free Checks | Redmond Fire Dept | - |
| Locations | - | Each bedroom, outside sleeping areas, each floor |
| New Construction | - | Interconnected hardwired with backup |
| CO Alarms | - | Required with fuel appliances or garage |
| Rentals | - | Working alarms at each tenancy, RCW 48.48.140 |
Highlighted rows indicate differences between cities.
Redmond FAQ
How many smoke alarms does my Redmond home need?
One in every bedroom, one outside each sleeping area, and one on every floor including the basement per IRC R314.
Are carbon monoxide alarms required?
Yes. Washington RCW 19.27.530 requires CO alarms outside each sleeping area in homes with attached garages or fuel appliances.
Renton FAQ
Do I need interconnected smoke alarms in my older Renton home?
Not until you do a permitted renovation over 1,000 dollars or add a bedroom. Otherwise battery-operated sealed 10-year alarms meet the minimum.
Are carbon monoxide detectors required?
Yes, in any dwelling with fuel-fired appliances like gas furnaces or a garage attached to living space, per RCW 19.27.530.
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