Welcome to Cook County Assessor James M. Houlihan’s  Assessment Search Function. This service is provided to you over the Cook County Assessor’s Office Interactive Website.

Using this search function, you may view property information, including property location (city, township and address), class, tax code, and age information, as well as prior and current assessment values. This information is similar to what is found on your "Notice of Proposed Assessed Valuation," mailed by the Assessor’s Office. If you find that your property’s information has been listed incorrectly, or you disagree with your assessed value, you may consider filing a non-residential appeal with the Cook County Assessor’s Office.

Please choose the type of property (residential or non-residential) you would like to search for and click once on the corresponding link below.