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Aurora, IL Building Safety: Carbon Monoxide Detectors (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Enforcing code
Property Maintenance Code § 706
Placement
Within 15 ft of sleeping rooms
Power source
Battery, plug-in, or hardwired w/ backup
Applies to
Every dwelling & rooming unit

Summary

Every Aurora dwelling and rooming unit needs a working carbon monoxide alarm within 15 feet of each sleeping room, combining the city's Property Maintenance Code with Illinois's statewide CO alarm requirement.

706.2 Installation and maintenance per State of Illinois law. Every dwelling or rooming unit shall comply with both this code AND the State of Illinois requirements and minimally be equipped with at least one approved carbon monoxide alarm in an operating condition within fifteen (15) feet of every room used for sleeping purposes. The carbon monoxide alarm may be combined with smoke detecting devices provided that the combined unit complies with the respective provisions of state rules and regulations relating to both smoke detecting devices and carbon monoxide alarms and provided that the combined unit emits an alarm in a manner that clearly differentiates the hazard.

1.  Every structure that contains more than one (1) dwelling unit shall contain at least one (1) approved carbon monoxide alarm in operating condition within fifteen (15) feet of every room used for sleeping purposes.

2.  The carbon monoxide alarms required herein may be either battery powered, plug-in with battery back-up, or wired into the structure's AC power line with secondary battery back-up.

APPENDIX A

BOARDING STANDARDS (Shall be amended by the addition(s) shown thus)

Full Breakdown

Aurora, Illinois (Kane County) applies this life-safety rule citywide across all four counties it spans. Every dwelling and rooming unit needs at least one working carbon monoxide alarm within 15 feet of each sleeping room, combining the city's Property Maintenance Code with Illinois's own CO alarm law (§ 706.1-706.2). Multi-unit buildings need the same 15-foot coverage per structure. Alarms may be battery-powered, plug-in with battery backup, or hardwired with backup, and combination smoke/CO units are allowed if they clearly differentiate which hazard triggered.

Violations & Fines

A missing or non-functioning carbon monoxide alarm is a Property Maintenance Code violation; the code official can issue a correction notice and citation under the city's administrative fine schedule.

Frequently Asked Questions

Does Aurora, IL require carbon monoxide detectors in every home?
Yes: every dwelling or rooming unit needs at least one working CO alarm within 15 feet of each sleeping room.
Can a smoke detector double as a CO alarm in Aurora?
Yes, if the combination unit meets state rules for both hazards and clearly differentiates which one triggered the alarm.

Sources & Official References

Other rules in Aurora

All Aurora rules

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Carbon Monoxide Detectors in Nearby Cities

How other cities in this county handle carbon monoxide detectors.

Elgin, IL
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