Cook County property tax
Lyons Township property tax appeal guide
Lyons Township filing window
This cycle's filing windows have passed for Lyons Township.
Check your Lyons property freeWhen were the calendar records checked?
- Cook County Assessor: last retrieved .
- Board of Review: last retrieved .
These are separate source retrievals, not editorial reviews or a guarantee that filing is open. A published source date can be older than its retrieval date. Missing dates do not mean there is no deadline.
For property assessment, a mailing address does not set the calendar; the Cook County township does. Lyons Township was reassessed as part of the South Triad for 2026 and is next scheduled for reassessment in 2029. Even outside that reassessment cycle, the Board of Review opens a window for Lyons Township every year.
Cities and villages in Lyons Township
Property addresses in Lyons Township most often list these cities:
- La Grange — 5,230 single-family parcels (20% of this township's single-family parcels)
- Western Springs — 3,956 single-family parcels (15% of this township's single-family parcels)
- Bridgeview — 2,466 single-family parcels (9% of this township's single-family parcels)
- Lyons — 2,361 single-family parcels (9% of this township's single-family parcels)
- Brookfield — 2,342 single-family parcels (9% of this township's single-family parcels)
- Justice — 1,945 single-family parcels (7% of this township's single-family parcels)
- Willow Springs — 1,817 single-family parcels (7% of this township's single-family parcels)
- Summit — 1,605 single-family parcels (6% of this township's single-family parcels)
- Countryside — 1,287 single-family parcels (5% of this township's single-family parcels)
- Indian Head Park — 1,075 single-family parcels (4% of this township's single-family parcels)
- Burr Ridge — 1,004 single-family parcels (4% of this township's single-family parcels)
- Hinsdale — 774 single-family parcels (3% of this township's single-family parcels)
A city can span more than one township, so confirm your township on your assessment notice or the Cook County Assessor's site.
Recent home sales in Lyons Township
From August 11, 2024 through August 11, 2026, the comparison pool contains 1,546 recorded single-family sales.
- Median sale price: $427,250
- Middle-half sale price range (25th–75th percentile): $313,250–$770,000
- Median sale price per square foot: $302
- Median building size: 1,540 square feet
- Median year built: 1957
These are recorded single-family sales used as comparison evidence, not an estimate of any home's value.
Evidence to review
- Locate the subject's assessment neighborhood in the county record before searching more broadly by mailing city, school district, or familiar local area.
- Compare corner, interior, and irregular lots with attention to shape, frontage, and other site differences that total square footage can obscure.
- Verify that basement finish, additions, and converted space are described on the same basis across the subject and candidate sales.
- Create a short condition log that dates each photograph and ties it to a room, building side, or repair document.
To check property facts on the county map, follow our CookViewer property comparison walkthrough. Keep assessment values separate from recorded sale prices.
Official sources
Cook County Assessor calendar · Cook County Board of Review appeals
You file directly with Cook County for free. We provide optional research, not representation or guaranteed savings.
Other South Triad townships
Related guides
- Cook County property tax appeal evidence checklist — Organize records, sales comparisons, photos, and submission confirmations with a printable preparation checklist.
- How much could a Cook County property tax appeal save? — Work through an illustrative tax calculation and understand why an assessment reduction is different from a tax saving.
- Wrong square footage on your Cook County assessment? — Verify property measurements, document a record error, and prepare a correction request with an evidence checklist.
- Why are my neighbor’s property taxes lower in Cook County? — Separate assessments from exemptions, compare similar homes, and work through a neighbor comparison before appealing.
- Cook County property tax appeal after buying a home — Assessment higher than your purchase price? Compare the figures, gather closing documents, and check your appeal window.
- How to use CookViewer to compare Cook County properties — Find the official map, compare property facts, and keep assessment figures separate from recorded sale prices.
- Why did my Cook County property tax bill go up? — Work through annual totals, assessment changes, exemptions, and tax rates before choosing your next step.
- How to read your Cook County assessment notice — Understand the numbers, verify your property facts, and turn your notice into an evidence checklist.
- Missed your Cook County property tax appeal deadline? — Find out which window closed, check the other appeal office, and prepare for what comes next.
- Assessor appeal vs Board of Review appeal — Understand the two appeal offices, their separate calendars, and the evidence each reviews.
- How to find comparable sales — Review a hypothetical sales comparison and print a blank research worksheet.
- How to appeal without a lawyer — Gather evidence, check your township window, and file directly with Cook County.
- Cook County property tax exemptions: are you missing one? — Check which exemptions apply, renew automatically, or need annual filing.
- What happens after a Board of Review appeal? — Understand PTAB's role after a Board of Review decision and its filing instructions.
- How to find your Cook County PIN — Find your 14-digit PIN on county records and use it for filings and research.
- Cook County property tax appeal research guide — See how property records and comparable sales can support an assessment appeal.
Guide revision dates describe changes to this guidance. County calendar retrievals are shown separately above; confirm filing dates with the office receiving your appeal.