Grundy County, Illinois

Challenge a revised county house value in Grundy County.

For Grundy County homeowners who need to confirm the wEDGE property record, October 26 filing deadline, and comparable-grid evidence before filing.

County-confirmed parcel lookup Nearby public sales comps Transparent low / mid / high savings range
How we help: Download a free appeal-readiness summary first. If the case looks worth filing, we can prepare the full submission package for a flat fee. No representation agreement is required.

One county-wide October 26 deadline

Grundy County mailed 2026 assessment notices on September 23, 2026, and lists one Board of Review complaint deadline for the whole county on October 26, 2026.

  • Search by parcel number or street address
  • See the county's house value and nearby comparable sales
  • Download your estimate after entering your email
  • Check the 2026 township deadline tracker.

Step 1

Find the property

Enter a Grundy County parcel number like 03-01-129-006 or a street address.