Ordinances

NOTICE: Effective January 1, 2025; LaSalle County Building codes will be updated to the following code years with amendments: International Residential Code 2024, International Building Code 2024 International Fire Code 2024, the International Mechanical Code 2024, International Fuel Gas Code 2024, and National Electrical Code 2023.   Major amendments include update of wind load to 107 mph, deletion of energy efficiency and sprinkler systems from IRC 2024.

Link to 2025 Building Permit Ordinance/Amendments

  1. Building Permit Ordinance (PDF)
  2. Floodplain Ordinance (PDF)
  3. Inoperable Vehicle Ordinance (PDF)
  4. Legal Buildable Lot Flow Chart (PDF)
  5. Mobile Home Park Ordinance (PDF)
  6. New Parcel Creation-Split Requirements (PDF)
  7. Subdivision Ordinance (PDF)
  8. Vacant Building Ordinance (PDF)
  9. Zoning Ordinance (PDF)

Disclaimer:

The LaSalle County Zoning Ordinance and Maps found on this site are for reference and the convenience of having the Maps and Ordinance in a computer-readable format. Electronic versions of the LaSalle County Zoning Ordinance and Maps may not reflect the most current version of said Ordinance and Maps and should not be relied on as an official record of the LaSalle County Zoning Ordinance and Maps. The print version of the Zoning Ordinance and Maps, together with any amendments adopted by the LaSalle County Board subsequent to the most recent update to the print version, remains the official version of the Ordinance and Maps. If any discrepancies exist between the print and internet versions of the LaSalle County Zoning Ordinance and Maps, the print version, together with any LaSalle County Board amendments shall be considered correct. Any questions regarding specific map areas or the Ordinance should be directed to the Land Use Department, 119 West Madison Street, Room 107, Ottawa, IL 61350 at phone number 815-434-8666 or by fax at 815-433-9303.