Cook County Assessor's Office

08/14/2026

As frontline professionals, field inspectors must conduct precise, rigorous site assessments of homes and businesses to ensure data is accurately collected. Cook County Assessor Fritz Kaegi created the Data Integrity Department to ensure this data is correctly captured to improve the efficiency of property characteristic updates.
🎥Watch the video as our Chief Valuations Officer recaps the team’s work and how leading with digital data integrity earned our office a 2026 NACo Achievement Award.

📰Read the press release: https://www.cookcountyassessoril.gov/news/cook-county-assessors-office-wins-five-national-awards

08/14/2026

📣Bremen Township property owners: The deadline to file a property assessment appeal is Thursday, September 24, 2026.

Property owners in Bremen Township were mailed their Reassessment Notice on August 12, 2026. Property owners are given an opportunity to appeal their assessment if the property characteristics listed on an assessment notice are incorrect, or if the estimated market value of a property is significantly more than what it could sell for in the current real estate market.

To file an appeal online, visit https://www.cookcountyassessoril.gov/online-appeals

🎥Learn about property assessments and appeals by watching our virtual Bremen Township appeal workshop on YouTube: https://www.youtube.com/live/2RrXIy9-e6U?si=gaKWBdIOC-IlUEqC

You can ask our team member any questions you have on reassessment. A recording of the workshop is available at the same link at the conclusion of event.

Read our residential valuation report: https://www.cookcountyassessoril.gov/valuation/bremen-township-residential

Read our commercial valuation report: https://www.cookcountyassessoril.gov/valuation/bremen-township-commercial

To file an appeal online, visit https://www.cookcountyassessoril.gov/online-appeals

Need in-person assistance? Find an event near you: https://www.cookcountyassessoril.gov/event-list

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La fecha límite para presentar una apelación de evaluación de propiedad en el municipio de Bremen es el jueves 24 de septiembre 2026.

Los propietarios del municipio de Bremen recibieron por correo las Notificaciones de Revaluación el 12 de agosto de 2026. Los propietarios tienen la oportunidad de apelar la reevaluación de su propiedad si las características de la propiedad que figuran en la notificación de reevaluación son incorrectas o si el valor de mercado estimado de una propiedad es significativamente superior a su valor de venta en el mercado inmobiliario actual.

Para presentar una apelación en línea, visite https://www.cookcountyassessoril.gov/online-appeals

Para leer nuestro informe de valoración residencial, visite https://www.cookcountyassessoril.gov/valuation/bremen-township-residential

Para leer nuestro informe de valoración comercial, visite https://www.cookcountyassessoril.gov/valuation/bremen-township-commercial

🎥Infórmese sobre las reevaluaciones y apelaciones de propiedades viendo nuestro taller de apelaciones del municipio de Bremen por YouTube: https://www.youtube.com/live/cDgSeMd4Iwc?si=h6r2DmZHEyACiavX

Cualquier duda sobre la reevaluación puede preguntar a nuestro equipo su pregunta durante el taller virtual. La grabación del taller está disponible en el mismo enlace al finalizar el evento.

¿Necesita asistencia en persona? Encuentre un evento cerca de usted: https://www.cookcountyassessoril.gov/event-list

08/13/2026

📣Lyons Township property owners: The deadline to file a property assessment appeal is Thursday, September 3, 2026.

Property owners in Lyons Township were mailed their Reassessment Notice on July 23, 2026. Property owners are given an opportunity to appeal their assessment if the property characteristics listed on an assessment notice are incorrect, or if the estimated market value of a property is significantly more than what it could sell for in the current real estate market.

To file an appeal online, visit https://www.cookcountyassessoril.gov/online-appeals

🎥Learn about property assessments and appeals by watching our virtual Lyons Township appeal workshop on YouTube: https://www.youtube.com/live/yhXl-8mBGpc?si=eHzQ0-lYp8Vcjo2l

Read our residential valuation report: https://www.cookcountyassessoril.gov/valuation/lyons-township-residential

Read our commercial valuation report: https://www.cookcountyassessoril.gov/valuation/lyons-township-commercial

To file an appeal online, visit https://www.cookcountyassessoril.gov/online-appeals

Need in-person assistance? Find an event near you: https://www.cookcountyassessoril.gov/event-list
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La fecha límite para presentar una apelación de evaluación de propiedad en el municipio de Lyons es el jueves 3 de septiembre 2026.

Los propietarios del municipio de Lyons recibieron por correo las Notificaciones de Revaluación el 23 de julio de 2026. Los propietarios tienen la oportunidad de apelar la reevaluación de su propiedad si las características de la propiedad que figuran en la notificación de reevaluación son incorrectas o si el valor de mercado estimado de una propiedad es significativamente superior a su valor de venta en el mercado inmobiliario actual.

Para presentar una apelación en línea, visite https://www.cookcountyassessoril.gov/online-appeals

Para leer nuestro informe de valoración residencial, visite https://www.cookcountyassessoril.gov/valuation/lyons-township-residential

Para leer nuestro informe de valoración comercial, visite https://www.cookcountyassessoril.gov/valuation/lyons-township-commercial

🎥Infórmese sobre las reevaluaciones y apelaciones de propiedades viendo nuestro taller de apelaciones del municipio de Lyons por YouTube: https://www.youtube.com/live/FVzHDqjaKlA?si=hYj4PhUUUHyWfoCX

¿Necesita asistencia en persona? Encuentre un evento cerca de usted: https://www.cookcountyassessoril.gov/event-list

08/13/2026

🔥Nope, everything was not fine🙃.
That is, until we started using a centralized help desk portal.
🎥Watch the video to learn how we improved our support services and why we received a 2026 NACo Achievement award.

08/12/2026

Acompáñenos en nuestro taller virtual para aprender sobre las reevaluaciones de propiedad en el municipio de Lyons.

-Infórmese sobre su aviso de evaluación
-Cómo determinar si se debe presentar una apelación
-Aprenda cómo presentar una apelación
-Participa en una sesión de preguntas y respuestas

08/11/2026

Join us for a virtual workshop to learn about recent reassessments in Lyons Township.

-Going over your assessment notice
-How to determine if an appeal should be filed
-Learn how to file for an appeal
-Participate in a live Q & A session

08/11/2026

✌️Goodbye, take-a-number system!
✨Hello new, upgraded, modern kiosk system! ✨
We are delighted to share that our customer service enhancements have been recognized by the National Association of Counties with a 2026 NACo Achievement Award.
🎥Watch the video to learn about our new kiosks and callback system.

08/07/2026

📢From Cook County Government:
If your home or business was damaged from the storms and tornadoes that happened on July 27th, please complete the Cook County Resident Damage Survey.

The information you provide will help determine what additional assistance and resources may be available for residents.
💻Complete the survey here: cookgov.me/july-storm-help

🚨The deadline to submit this survey was extended to Monday, August 10th.

Share with your family, friends, and neighbors!

On July 27, severe storms brought EF-0 and EF-1 tornadoes to south suburban Cook County, damaging homes, blocking roads, leaving debris and causing power outages.

Cook County Emergency Management and Regional Security continues to support recovery efforts in 15 municipalities by coordinating debris removal, road clearance, equipment requests and response efforts with our local, state and nonprofit partners.

If your home or business was damaged, please complete the Cook County Resident Damage Survey by Aug. 5. The information you provide will help determine what additional assistance and resources may be available for residents.

Complete the survey here: cookgov.me/july-storm-help

07/30/2026

We are hiring! Check out the available job opportunities:
▪️Residential Field Inspector III
The deadline to apply is Aug 19, 2026 at 11:59 PM.

▪️Residential Senior Field Inspector III
The deadline to apply is Aug 12, 2026 at 11:59 PM.

▪️Taxpayer Information Senior Specialist
The deadline to apply is Aug 12, 2026 at 11:59 PM.

View the full job description and apply today at cookcountyassessoril.gov/job-opportunities.

07/28/2026

🚨Office Hours Update🚨

Please be advised that our Bridgeview office is closed.
If you need in-person assistance, please stop by our Markham location. https://www.cookcountyassessoril.gov/assessors-office-locations

💻Most of our services are online. Visit our website at http://cookcountyassessoril.gov