Illinois, La Salle County Plumbing Permit Regulations and County Ordinances for Unincorporated Areas
La Salle County Building & Safety Divisions
La Salle County's Land Use Department is responsible for overseeing development and construction within the county's unincorporated areas. This department issues building and construction permits and maintains records of development activities. They also manage building code inspections, which are conducted by a private firm hired by the county to ensure compliance with adopted building codes.
Effective January 1, 2025, La Salle County will adopt updated building codes, including the International Residential Code 2024, International Building Code 2024, International Fire Code 2024, International Mechanical Code 2024, International Fuel Gas Code 2024, and National Electrical Code 2023, with specific amendments.
Rules for Properties in Unincorporated Areas
Building permits are required for most construction projects in unincorporated La Salle County. This includes all commercial projects, residential structures over 200 square feet or with a side of 20 feet or greater, and residential remodeling involving structural changes. Permits are also necessary for signs, fences, pools, solar and wind equipment, and towers.
Agricultural buildings are exempt from local county building code inspections but are still subject to Illinois Department of Public Health plumbing inspections.
Construction must not begin before a building permit is issued, as doing so can result in a penalty of double the permit fee. It is recommended to apply for permits at least 30 days in advance of anticipated construction.
Specific ordinances, such as the LaSalle County Setback Ordinance and Zoning Ordinance, also apply to structures in unincorporated areas, dictating minimum distances from roadways and property lines.
Plumbing contractors must possess a state license number for registration.