Rock County Building Departments (Wisconsin)

Rock County Building Departments develop and enforce building codes to ensure the construction of safe buildings in Rock County, Wisconsin. 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 Rock County building permits issued by the department. They also keep records on a property's compliance with Rock County building codes, including building and zoning violations, as well as records of inspection reports. Many Building Departments provide online access to building records.

Beloit Planning Department Beloit WI 100 State Street 53511 608-364-6700

Janesville Zoning Janesville WI 18 North Jackson Street 53548 608-755-3085

Rock County Planning Department Janesville WI 51 South Main Street 53545 608-757-5597


Rock County Building Inspectors ensure that building construction is in compliance with building and zoning codes in Rock County, WI. They maintain documents on permits issued by the Rock 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 Rock 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.

Beloit Building Inspector Beloit WI 100 State Street 53511 608-364-6700

Janesville Building Inspector Janesville WI 18 North Jackson Street 53548 608-755-3060

Rock County Treasurers and Tax Collectors are responsible for the collection of property tax revenue in WI. 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 Rock 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 Rock County building records, including documents on building and zoning.

Beloit City Treasurer Beloit WI 100 State Street 53511 608-364-6663

Evansville City Treasurer Evansville WI 11 West Church Street 53536 608-882-2266

Rock County Treasurer's Office Janesville WI 51 South Main Street 53545 608-757-5670


Rock County Code Enforcement Departments ensure compliance with building and zoning codes for a county or local government. Code Enforcement Departments in Wisconsin keep records on building code violations, zoning regulations, and zoning violations. They also maintain records on Rock County building inspections, complaints filed against properties or businesses, violations issued by the department, and other local rules and regulations. The records maintained by the Code Enforcement Department are often available online.

Beloit Code Enforcement Beloit WI 100 State Street 53511 608-364-6650


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

Janesville Assessor Janesville WI 18 North Jackson Street 53548 608-755-3045

Rock County Property Lister Janesville WI 51 South Main Street 53545 608-757-5610