Illinois, Jo Daviess County Roofing Permit Regulations and County Ordinances for Unincorporated Areas
Jo Daviess County Building & Safety Jurisdiction
In Jo Daviess County, the Planning & Development Department is the primary authority responsible for administering and enforcing the county's building codes and issuing building permits. This department oversees the review of building plans, the issuance of permits for construction or structural repairs, and the inspection of buildings under construction to ensure compliance with county ordinances.
Roofing Permit Requirements for Unincorporated Areas
For properties located in the unincorporated areas of Jo Daviess County, a building permit is required prior to beginning any structural changes or repairs, which includes roofing work. Property owners or contractors must adhere to the following requirements:
- Permit Necessity: A permit must be obtained before any construction or repair work begins. Starting work without a permit may result in penalty fees.
- Contractor Licensing: When applying for a permit involving roofing, the contractor must have a valid Illinois Roofing License. The roofer's license number must be included with the permit application.
- Plan Review: Applicants must provide details regarding the type of roofing materials to be used as part of the residential building plan review process.
- Inspections: Once a permit is issued, it is the responsibility of the owner or contractor to contact the Planning & Development Department to schedule all required inspections.
Resources to Learn More
Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Illinois, including Jo Daviess 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