LaSalle County Building Departments (Illinois)

Search for LaSalle 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.


LaSalle County Building Departments develop and enforce building codes to ensure the construction of safe buildings in LaSalle County, Illinois. The Building Department maintains building and zoning records, including design plans for construction and renovation projects, records on the current structures on any parcel, maps showing property lines, and LaSalle County building permits issued by the department. They also keep records on a property's compliance with LaSalle County building codes, including building and zoning violations, as well as records of inspection reports. Many Building Departments provide online access to building records.

Peru Zoning Peru IL 1901 4th Street 61354 815-223-1148


LaSalle 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 LaSalle County, IL including inventories of parcels and structures, zoning boundaries, and the value of all the property in the jurisdiction. Assessors may also keep LaSalle 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.

La Salle Township Assessor LaSalle IL 931 1st Street 61301 815-223-0807

Lasalle County Assessor's Office Ottawa IL 707 East Etna Road 61350 815-434-8233


LaSalle 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 LaSalle 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 LaSalle County building records, including documents on building and zoning.

Lasalle County Illinois Tax Collector Ottawa IL 707 East Etna Road 61350 815-434-8219

Marseilles City Treasurer Marseilles IL 209 Lincoln Street 61341 815-795-2133