Jefferson County Building Departments (Illinois)

Search for Jefferson County, IL building and zoning records. Building records include building plans, building code evaluations, building surveys, and building code violations, and zoning records include zoning violations, zoning boundaries, and zoning regulations.


Jefferson County Assessors evaluate the value of properties and parcels in order to determine property taxes. The Assessor's Office maintains current data on every property in the Jefferson County, IL including inventories of parcels and structures, zoning boundaries, and the value of all the property in the jurisdiction. Assessors may also keep Jefferson County building and zoning records, such as reports from on-site inspections, maps of property lines and zones, and value assessments for building improvements. Many Assessor's Offices provide online access to their records, including documents on building and zoning.

Jefferson County Assessor's Office Mount Vernon IL 100 South 10th Street 62864 618-244-8016

Mt Vernon Assessor Mount Vernon IL 811 Harrison Street 62864 618-244-0679


Jefferson County Treasurers and Tax Collectors are responsible for the collection of property tax revenue in IL. The Office of the Treasurer and Tax Collector maintains and updates records on every parcel in the district, as well as maintaining certain building and zoning records. These records include building valuations, zoning boundaries, and building construction. Treasurers and Tax Collectors also keep documents on Jefferson County property taxes, including property tax assessments, defaults on property taxes, and tax liens. The office may also maintain information on property auctions and a property's prior liens or foreclosures. Many Treasurers and Tax Collectors provide online databases to access their Jefferson County building records, including documents on building and zoning.

Jefferson County Treasurer's Office Mount Vernon IL 100 South 10th Street 62864 618-244-8010

Mt Vernon City Treasurer Mount Vernon IL 1100 Main Street 62864 618-242-6808


Jefferson County Building Inspectors ensure that building construction is in compliance with building and zoning codes in Jefferson County, IL. They maintain documents on permits issued by the Jefferson County Building Department, including construction, relocation, demolition, and occupancy permits. Building Inspectors also keep approved and rejected building plans and blueprints, records on a property's compliance with Jefferson County building codes, and records on building and zoning violations and inspection reports. Many Building Inspectors make these building and zoning records available to the public online.

Mt Vernon Building Inspector Mount Vernon IL 1100 Main Street 62864 618-242-6830