Located on the 2nd Floor of the Township Offices


Patrick J. Hynes, C.I.A.O.

Assessor’s Staff:

Carrie Bernardoni, C.I.A.O., Irene Farbo, Jennifer O’Sullivan

Welcome to the Township of Lyons Assessor’s office! Your local taxpayer advocate.

Our office is available to answer your questions about the Cook County property tax process.

We are available to answer questions about property ownership, sales data, permanent index numbers or tax estimates for new construction. We are first and foremost your local property tax advocate.

Our office provides many services to the residents of the Township of Lyons:

  • Filing for Homeowners, Senior, Senior Freeze, Disability, and Veterans Exemptions
  • Assistance to homeowners and seniors in completing Certificate of Error forms for any exemptions they did not receive, which may result in a refund.
  • Assistance in filing appeals at both the Cook County Assessor and the Cook County Board of Review
  • Requesting a tax bill
  • Change of name and address
  • Provide access to Sidwell Maps
  • Free Notary Service

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Assessor’s Office Additional Helpful Links


Patrick J. Hynes: phynes@lyonsts.com

Carrie Bernardoni: cbernardoni@lyonsts.com

Irene Farbo: ifarbo@lyonsts.com

Jennifer O’Sullivan: josullivan@lyonsts.com


General Phone Number:

(708) 482-8300, option 1,Fax (708) 482-1056

Hours of Operation:

Monday: 8:30am-4:30pm

Tuesday: 8:30am-4:30pm

Wednesday: 8:30am-4:30pm

Thursday: 8:30am-4:30pm

Friday: 8:30am-4:30pm

Saturday: Closed

Sunday: Closed

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