Assessor's Office


On January 10, 2020, the Cook County Assessor issued the announcement set out below. Should you have questions or need forms after they are issued by the Cook County Assessor, please contact Jan Churchwell, New Trier Township Assessor, or Deputy Assessor, Len Shifflett. They can be reached at 847-446-8200 or at or  The New Trier Township Assessor's offices are located at 739 Elm Street, Winnetka, IL 60093

"Exemption Applications Are Coming Soon

Good news: The Senior Exemption now renews automatically each year

Exemption applications for the 2019 Tax Year will be available to download from our website on Monday, January 13, 2020 for the Homeowner, Senior, and Senior Freeze Exemptions.

A new law, passed by state legislators in partnership with our office allows for the automatic renewal of the Senior Exemption. This means that a senior homeowner only has to apply once, instead of applying each year to prove they are 65 or older.

Prior recipients of the exemption will receive a postcard in the mail informing them that they no longer need to reapply. New applicants for the Senior Exemption must apply this year and thereafter will automatically renew. Please note, the Homeowner and Senior Exemptions are the only two exemptions that renew automatically each year.

Prior recipients of the Senior Freeze Exemption will receive renewal forms in the mail in January with a due date of February 13, 2020. The Senior Freeze Exemption still needs to be applied for each year.

 Renewal applications for the Disabled Persons, Disabled Veterans and Long Time Occupant Exemptions will be mailed in early February and can be downloaded from at that time. Taxpayers may also call our office at 312-443-7550 and request applications by mail."



On Wednesday, January 22, 2020, at 7:00 p.m. at the New Trier Township offices (739 Elm Street, Winnetka), New Trier Township Assessor, Jan Churchwell, and Deputy Assessor, Len Shifflett, will present their Annual Tax Calendar seminar. This presentation will cover the same basic information as the seminar previously presented on November 12, 2019. Jan and Len will cover the major events in the property tax cycle including tax bills, assessments, exemptions, and appeals. The seminar is open to the public and is free. You do not have to register in advance to attend. Jan and Len can be reached by telephone at 847-446-8200 and by email addressed to or The New Trier Township Assessor’s offices are located at 739 Elm Street, Winnetka.


The Board of Review issued its decisions regarding New Trier 2019 property assessment appeals on November 22, 2019.  The Board of Review's decision letter explained the property owner's further avenues for appeal.  One avenue is to file an appeal with the Illinois Property Tax Appeal Board (PTAB).    A property owner may appeal to PTAB only if an appeal was timely filed with the Board of Review and a decision was issued by the Board.  An appeal to PTAB must be filed in "hard copy" on the approved PTAB forms and submitted to PTAB at its Springfield office within thirty (30) days after the Board of Review transmits to the County Assessor the Board's final action on the township in which the property is located. On January 3, 2019, the Board of Review posted on its web site that it transmitted its final action on New Trier Township appeals to the Cook County Assessor on December 20, 2019.   We strongly suggest that all appeals to PTAB be submitted by, or postmarked on or before, Friday, January 17, 2020.  If you need comps or other assistance  in completing your PTAB appeal, please call our office  (847-446-8200) or email the Deputy Assessor, Len Shifflett, at, or email me at

Jan Churchwell

New Trier Township Assessor

What We Do

In a Nutshell: Your New Trier Township Assessor's Office advocates for you with the Cook County Assessor's Office and the Cook County Board of Review. Additionally, we provide a broad range of services acting as a liaison for you with various County agencies.

Available Services

  • Assistance with preparing appeals for the Cook County Assessor, the Assessor's Re-Review and the Cook County Board of Review (and Re-Review)
    • We provide information about the various grounds for appeal
    • We file appeals for you at your request
  • Assistance with preparing appeals for the Property Tax Appeal Board (PTAB)
  • Assistance with filing exemptions
  • Assistance with the Cook County Treasurer's Office
    • Obtaining refunds where applicable
    • Updating name and address information
    • Providing documentation to correct second installment tax bills that are missing valid exemptions
  • Sales and building permit information
  • Taxpayer of record information
  • Brief legal descriptions of a specific property
  • Information from the Plat Books ("Sidwell Maps")
  • Information from tax exempt properties
  • Tax rate information

Outreach Events

We are also available to do outreach events for your organization. We have a presentation we call "Your Annual Tax Calendar at a Glance," but will gladly tailor a presentation for your organization.

Cook County

Understanding Property Taxes

Who's who in the Cook County property tax system? Learn the ins and outs of the taxation process (PDF).

Contact Us

You can reach the New Trier Assessor's office at 847-446-8200. Deputy Assessor Leonard Shifflett and I look forward to serving you.

- Jan Churchwell, New Trier Township Assessor

Additional Resources