Smoke Detectors: Des Plaines vs Oak Lawn
How do smoke detectors rules compare between Des Plaines, IL and Oak Lawn, IL?
Des Plaines and Oak Lawn have similar restriction levels.
Des Plaines, IL
Cook County
Des Plaines enforces the Illinois Smoke Detector Act (425 ILCS 60/), as amended in 2023, which requires 10-year sealed-battery smoke alarms in all single-family and multi-family dwellings. Alarms must be installed inside each sleeping area, outside each sleeping area, and on every floor including the basement.
View full Des Plaines rules →Oak Lawn, IL
Cook County
All Oak Lawn dwellings must have working smoke alarms under the Illinois Smoke Detector Act (425 ILCS 60/). Since January 1, 2023, replacement alarms in homes built before 1988 must be 10-year sealed-battery photoelectric units. Alarms are required in every bedroom, outside each sleeping area, and on every level.
View full Oak Lawn rules →Key Facts Comparison
| Fact | Des Plaines | Oak Lawn |
|---|---|---|
| Authority | 425 ILCS 60/ (IL Smoke Detector Act) | - |
| New Installs | 10-year sealed battery required | - |
| Locations | Inside & outside sleeping areas + each floor | Every bedroom, hall, level |
| CO Alarms | 430 ILCS 135/ within 15 ft of bedrooms | 430 ILCS 135/ |
| Fine Range | $100–$500 | - |
| Law | - | 425 ILCS 60/ |
| Pre-1988 Replacements | - | 10-yr sealed battery |
| Contact | - | (708) 499-7835 |
Highlighted rows indicate differences between cities.
Des Plaines FAQ
What smoke detectors are required in Des Plaines IL?
Under the 2023 Illinois Smoke Detector Act, new installs must use 10-year sealed-battery alarms inside and outside each sleeping area and on every floor including basements. Older hardwired alarms with battery backup may remain.
Do Des Plaines rental properties need 10-year sealed alarms?
Yes. Rentals must comply with the Illinois Smoke Detector Act. Non-compliant alarms will fail rental inspection and trigger fines of $100 to $500 per violation.
Are CO detectors required in Des Plaines?
Yes. The Illinois Carbon Monoxide Alarm Detector Act (430 ILCS 135/) requires CO alarms within 15 feet of every sleeping area in homes with fuel-fired appliances or attached garages.
Oak Lawn FAQ
Do I need 10-year sealed smoke detectors in Oak Lawn IL?
Yes, when replacing alarms in pre-1988 homes. Since January 1, 2023, replacement alarms in those homes must be 10-year sealed-battery photoelectric units.
Where must smoke alarms be installed in an Oak Lawn home?
In every bedroom, outside each sleeping area (hallway), and on every level including the basement, per 425 ILCS 60/.
Are CO detectors required in Oak Lawn?
Yes, within 15 feet of each sleeping area in homes with fuel-fired appliances or attached garages, under 430 ILCS 135/.
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