O'Fallon
,
Illinois
Building Information Is Just a Click Away
Instantly find building codes, upload portals, permit forms, and more.
St. Clair County
Building Information Is Just a Click Away
Instantly find building codes, upload portals, permit forms, and more.
Electronic Submittal
Self Certification
Link to Municipal Building Codes.
Link to Adopted Building Codes on City Webpage.
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2018 International Building Code
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2018 International Fire Code
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2018 International Existing Building Code
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2017 National Electric Code and additional regulations and standards
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2018 International Mechanical Code
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2018 International Fuel Gas Code
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2018 International Energy Conservation Code (with State of Illinois revisions)
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Illinois Plumbing Code
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Illinois Accessibility Code (enforced as required through Illinois State Statute)
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