The Illinois Property Summary Sheet is a document used by local governments in the state of Illinois to provide information about a particular property. It includes data such as the property's address, owner, zoning, assessed value, sales history, and other pertinent details. The summary sheet is used by local assessors, appraisers, and tax collectors to assess the value of a property and calculate any taxes due. There are two types of Illinois Property Summary Sheets: the Residential Property Summary Sheet and the Commercial Property Summary Sheet. The Residential Property Summary Sheet provides details about single-family homes, condos, and parcels of land, while the Commercial Property Summary Sheet provides information about multi-family homes, commercial buildings, and industrial properties.