The Cook County Assessor is an elected government official who is responsible for establishing fair and accurate property assessments. Valuation of the county's 1.8 million parcels of property is conducted for ad valorem tax purposes. Ad valorem means according to value and refers to the amount of taxes that will be required to be paid based on the value of the property.
To administer this task, the Assessor reassesses one-third of the properties located in the county each year. The Assessor alternates assessments among the northern suburbs, the southern suburbs and the City of Chicago.
The Assessor's public service responsibilities, however, are not limited to setting property values. In addition to working with other government agencies to stimulate economic development, job creation and the construction of affordable housing, the Assessor also seeks to help county residents better understand the assessment process and take advantage of money-saving exemptions the office provides.