Riverside Township 2026 Triennial Reassessment Notices Have Been Mailed
Riverside Township homeowners should be aware that 2026 Triennial Reassessment Notices were mailed on Friday, April 24, 2026. If you received a notice, now is the time to carefully review your property assessment to ensure it accurately reflects your home’s value.
Homeowners have a limited window to appeal their assessment at the Assessor’s Office. The deadline to file an appeal at the Assessor’s level is June 8, 2026. Even if you choose not to appeal at this stage, there will be a second opportunity later in the year to appeal before the Board of Review.
Why Reassessment Years Matter
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2026 Triennial reassessment notices were mailed to River Forest Township homeowners on Monday, April 20, 2026. Homeowners in River Forest Township have 30 business days to appeal their assessment at the Assessor’s office (there will be a second opportunity to appeal later in the year at the Board of Review, whether you appeal at the Assessor’s office or not). The deadline for appealing at the Assessor’s office is June 02, 2026.
Township property owners on April 17, 2026.
The Cook County Assessor’s Office mailed 2026 property assessment notices to Norwood Park Township homeowners on Monday, April 13, 2026. This means the appeal window is now open and will remain open until May 26, 2026.
Cook County reassesses one district each year, and 2026 is the reassessment year for the South District. If you own property in one of the reassessed townships, you’ll receive a new reassessment notice this year.
Cook County property owners will receive their First Installment 2025 property tax bills later than usual.
2025 Triennial reassessment notices were mailed to Niles Township homeowners on October 22, 2025. The following cities, towns, and villages are in Niles Township: Glenview, Golf, Lincolnwood, Morton Grove (east 3/4), Niles (southeast half), and Skokie. Homeowners in Niles Township have 30 days to appeal their assessment at the Assessor’s office (there will be a second opportunity to appeal later in the year at the Board of Review, whether you appeal at the Assessor’s office or not). The deadline for appealing at the Assessor’s office is December 05, 2025.
2025 property assessment notices were mailed by the Cook County Assessor’s office on October 21, 2025, to Rich Township property owners. The following cities, towns, and villages are in Rich Township: Country Club Hills, Flossmoor (west 3/4), Frankfort, Hazel Crest, Homewood, Matteson (majority), Olympia Fields (vast majority), Park Forest (north 3/4), Richton Park, Tinley Park (portion), and University Park (portion). The window to appeal your 2025 assessed value is now open until the deadline of November 04, 2025.
The Cook County Assessor’s office mailed 2025 assessment notices to South Chicago property owners on Wednesday, October 15, 2025. The window to appeal your assessed value at the Assessor’s office is now open until the deadline of November 28, 2025.
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