Marshall County, Illinois Roofing Permit Regulations and County Ordinances for Unincorporated Areas
Marshall County Building & Safety Jurisdiction
In Marshall County, Illinois, building and zoning matters are managed by the Marshall County Highway and Zoning Department. While the county maintains zoning ordinances and oversees land use, it is essential to contact the Zoning Administrator directly to determine if a specific project, such as a roofing job, requires a building permit. Requirements can vary based on the specific location of the property and the scope of the work being performed.
Rules for Properties in Unincorporated Areas
Properties located in unincorporated areas of Marshall County are subject to county-level zoning regulations. Because Illinois does not have a single, uniform statewide building code that applies to all unincorporated areas, permitting requirements are often determined at the local county level. Property owners planning roofing work should verify whether their specific project requires a permit by contacting the Marshall County Zoning Department. Additionally, regardless of whether a local permit is required, Illinois state law mandates that all roofing and waterproofing work must be performed by an Illinois state-licensed roofing contractor, with limited exceptions for property owners working on their own personal property.
Resources to Learn More
Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Illinois, including Marshall 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.
Resources to Learn More