Madison County, IL Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Excepted section
- IRC § R314, Automatic Fire Sprinkler System
- Also excepted
- IRC § R501.3 and its exceptions
- Adoption section
- § 90.16(A)(2)
- Applies to
- Unincorporated county only
- General code violation fine
- Up to $1,000/day, § 90.99
Summary
Unincorporated Madison County adopted the 2012 International Residential Code for home construction but specifically carved out Section R314, the Automatic Fire Sprinkler System requirement, along with R501.3. New single-family and duplex homes built under the county's adopted code are not required to install residential fire sprinklers.
§ 90.16 BUILDING CODES AND REGULATIONS ADOPTED BY REFERENCE. (A) The following Codes are adopted by reference and made a parte hereof as if appearing in total: ... (2) 2012 International Residential Code (IRC, in its entirety except Section R314 “Automatic Fire Sprinkler System” and R501.3 and its exceptions;
Full Breakdown
3 and its exceptions," meaning the county deliberately declined to bring the IRC's residential sprinkler mandate into force for construction in unincorporated Madison County. 16 package as the 2012 International Building Code, 2012 International Fire Code, 2005 National Electric Code, 2009 International Energy Conservation Code, 2012 International Mechanical Code, Illinois Plumbing Code, Illinois Private Sewage Code and 2012 International Property Maintenance Code. 3 exceptions provision is also out. The commercial 2012 International Fire Code the county did adopt in full still applies to non-residential construction, so the sprinkler exception is specific to the residential code.
16(B) for public review, and permits for this construction run through the county's Planning and Development / Building and Zoning Department rather than a municipality, since Alton, Edwardsville, Granite City and Collinsville all administer their own building codes.
Violations & Fines
Because the sprinkler section itself was excepted, there's no fire-sprinkler mandate to enforce; but any other violation of the adopted building codes in Chapter 90, including improper construction under the parts of the IRC the county did adopt, still carries the standard fine under § 90.99: up to $1,000, with each day the violation continues after notice a separate offense.
Frequently Asked Questions
Does Madison County require fire sprinklers in new homes?
Does the fire sprinkler exemption apply inside cities like Edwardsville?
What other IRC section did the county exclude besides fire sprinklers?
Sources & Official References
Other rules in Madison County
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