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Assessor's Office

Cook County Board of Review Appeal seminar.


Commissioner Dan Patlak

Paid for by Citizens for Dan Patlak


Commissioner Dan Patlak presents an educational webinar on the assessment appeal process & how to file a successful appeal at the Cook County Board of Review.



Learn How To File An Appeal

Commissioner Dan Patlak presents an in depth and clear explanation of how to navigate the Cook County Property Assessment Appeal process.


📣Homeowners: Are you missing an exemption on your property tax bill?
If so, you have until September 11 to apply for missing property tax exemptions on your 2019 second-installment property tax bill. By meeting this deadline, you can receive a corrected property tax bill by mail before the October 1 deadline to pay without incurring penalties and interest. For more information:…/homeowners-are-you-missing-exe…Cook County Government

Image may contain: text that says '2018 Assessed Value TAX CALCULATOR 18,489 2019 Property Value 2019 Assessment Level 184,890 2019 Total Tax Before Exemptions 5,622.15 2019 Assessed Value X 10% 18,489 Homeowner's Exemption Senior Citizen Exemption Senior Freeze Exemption X 2.9160 2019 State Equalizer 2019 Equalized Assessed Value (EAV) 53,914 .00 .00 .00 2019 Local Tax Rate X 10.428% 2019 Total Tax Before Exemptions 5,622.15 2019 Total Tax After Exemptions 5,622.15 First Installment 2,445.53 Second Installment+ 3,176.62 Total 2019 Tax (Payable in 2020) 5,622.15'


The Lemont Township Assessor’s Office continues to serve the community with property assessment and tax issues that residents may have. This office is our local source for assistance to appeal assessed values, apply for Homeowner, Disabled Persons, Disabled Veterans, Senior, and Senior Assessment Freeze exemptions.

The office also processes building permits, maintains a database containing assessed values, sales, and transfers information.

To receive direct information regarding assessment appeal dates one can join our email notification list.

Helpful links for other agencies:

Office Hours: 7:30am - 3:00pm

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Kenneth C. Jacobowski CIAO

Township Assessor

Joyce Black

Assessor Administrative Assistant