Zoning district boundaries by type and classification. Chicago is divided into zoning districts that regulate land use activities across the city. Data is based on the Chicago Zoning Ordinance and Land Use Ordinance
http://bit.ly/9eqawi. Zoning Types are defined in this ordinance. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required. For additional information about business uses, review the License/Zoning Reference (LZR) Guide
http://bit.ly/vvGzne, which is based on the Municipal Code and is intended to assist business owners in determining the proper zoning district and primary business license for specific business types. Update Frequency: Data is updated monthly. Related Applications: Zoning Map
https://gisapps.cityofchicago.org/zoning/