Illinois, Franklin County Roofing Permit Regulations and County Ordinances for Unincorporated Areas
Franklin County Building and Safety Information
In Franklin County, Illinois, building permit administration is handled through the office of the Supervisor of Assessments. Property owners planning construction or improvements should contact this office directly to determine specific permit requirements for their project, as regulations can vary based on the nature of the work and the specific location of the property.
Permit Requirements for Unincorporated Areas
Building permits in Franklin County are generally required for permanent structures, additions to existing structures, and certain other improvements. While specific, detailed ordinances regarding roofing-only permits are not explicitly outlined in general county documentation, the county requires permits for permanent structures and additions. Because roofing work can involve structural changes or significant alterations to a building, it is essential to verify with the Supervisor of Assessments whether your specific roofing project requires a permit before beginning work.
Please note that properties located within incorporated city limits may be subject to additional or different municipal ordinances. Always confirm the jurisdiction of your property to ensure you are following the correct local regulations.
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Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Illinois, including Franklin County.
Illinois Roofing Legislation, Codes, and Guidelines
State-Level Building Codes and Legislation for Roofing in Illinois
As of January 1, 2025, Illinois has implemented a statewide baseline building code requirement pursuant to Public Act 103-0510, which amended the Capital Development Board Act. This legislation mandates that all municipalities and counties in Illinois must adopt and enforce building codes that meet or exceed the minimum structural requirements of the International Code Council (ICC) standards, specifically the International Building Code (IBC) and the International Residential Code (IRC). Prior to this, Illinois did not have a unified statewide building code, and regulations were determined entirely at the local municipal or county level.
While the state now requires a baseline, local jurisdictions retain the authority to adopt their own specific editions (such as the 2018, 2021, or 2024 editions) and implement local amendments, provided those amendments do not reduce the structural requirements below the state-mandated baseline. Consequently, specific roofing requirements—such as those for ice and water shields, ventilation, and shingle layering—can still vary significantly between different cities, villages, and counties. Property owners and contractors must consult their local Authority Having Jurisdiction (AHJ) to confirm the specific code edition and local amendments applicable to their project.
Primary State Agency
The Illinois Capital Development Board (CDB) is the primary state agency responsible for the administration of the state's building code framework. Under the Capital Development Board Act (20 ILCS 3105), the CDB is tasked with identifying and publishing local building codes and ensuring that municipalities and counties comply with the requirement to report their adopted codes and amendments to the state.
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