Skip to content
Free check

Independent. Not affiliated with any government agency.

Cook County · Illinois

Lake Township property tax appeals

A Lake Township property tax appeal starts with the Cook County Assessor's Office, then the Cook County Board of Review. The next deadline is Oct 29, 2026 for Lake Township, Cook County Assessor's Office.

Next deadline
Oct 29, 2026
Open now
Lake Township · Cook County Assessor's Office

Opens Sep 16, 2026Closes Oct 29, 2026

Source: Assessment & Appeal Calendar (page last updated 9/22/26) - Cook County Assessor's OfficeLast checked

Check a Lake Township home for free

Enter the address or parcel number from your notice. We compare the assessment with similar homes and show the numbers, whatever they are. You decide and file yourself.

Our coverage
Free check available
  • Independent guide — not affiliated with Lake, Cook County or any government agency.
Last updated
October 1, 2026
Sources last checked
October 3, 2026
Status
Verified guide

How we verify facts

When and where do I file a Lake Township property tax appeal?

Who hears a Lake Township appeal?

The stages in order. We are not affiliated with any of these offices.

  1. Cook County Assessor's Office

    Filing: appeal

  2. Cook County Board of Review

    Filing: complaint

  3. Circuit Court of Cook County (tax objection)

    Filing: objection

  4. Illinois Property Tax Appeal Board

    Filing: appeal

Which Lake Township filing windows are coming up?

Lake Township filing windows
ClosesAreaWho hears itStatus
Oct 29, 2026Lake TownshipCook County Assessor's Office · Official source · Last checked Sep 29, 2026Open now

When were past Lake Township deadlines?

Past Lake Township filing windows
Tax yearWindowOffice
2024Closed October 11, 2024Lake · Cook County Assessor's Office
2021Closed December 6, 2021Lake · Cook County Assessor's Office

When is the Lake appeal deadline?

Cook County Assessor's Office: Closes October 29, 2026.

Deadline detailBoard of Review re-review
Lake Township, tax year 2025: the Board of Review's decision date was May 11, 2026 and the re-review period closed May 13, 2026; the Assessor (CCAO) certification date was Jun 2, 2026.[1] (latest published: tax year 2025)
Deadline detailNotice mailed
Lake Township (2024 reassessment): Reassessment Notices were mailed Aug 29, 2024; appeals were due Oct 11, 2024.[2] (latest published: tax year 2024)

Upcoming appeal deadlines in every county we track

What do Lake Township property taxes and assessments look like?

Figures from public records and the Census, each with its source. They describe the county's homes as a group, not the value of any one home.

How Lake Township home assessments are spread

Assessed values of 139,890 homes in the property classes our free check covers (202, 203, 204, 205, 206 and 8 more), tax year 2025 values after the Board of Review. Half are between $12,001 and $25,953; the median is $19,861. The last bar holds everything above it.Source: Assessment records from the county's open data (tax year 2025 values after the Board of Review), retrieved Sep 25, 2026; our calculation.

Lake Township compared with other townships

  1. Stickney$23,000
  2. Worth$23,000
  3. Cicero$22,000
  4. Rich$20,000
  5. Lake$19,861
  6. Bremen$19,353
  7. Bloom$14,168
  8. Hyde Park$13,701
  9. Calumet$13,000

Ranked 33 of 38; showing the 9 nearest in rank.

Median assessed value by township: highest North Chicago ($135,400), lowest Thornton ($12,000).

Median assessed value of homes in the property classes our free check covers (202, 203, 204, 205, 206 and 8 more) for each township with at least 50 such homes, tax year 2025 values after the Board of Review.Source: Assessment records from the county's open data (tax year 2025 values after the Board of Review), retrieved Sep 25, 2026; our calculation.

What happened to Lake Township appeals in tax year 2025

  1. Assessor12% lowered of 3,770
  2. Board of Review52% lowered of 14,427

Assessor: 12% of 3,770 appeals lowered (median cut 7.5%); Board of Review: 52% of 14,427 appeals lowered (median cut 7.9%)

Share of appeals on homes in the property classes our free check covers (202, 203, 204, 205, 206 and 8 more) that were lowered, unchanged or raised, by stage.Source: public appeal results for tax year 2025 from the county's open data, retrieved Sep 25, 2026; our calculation. Past results, not a prediction for any home.

Lake Township filing windows on a calendar

  1. Lake TownshipOct 29, 2026 · Cook County Assessor's Office · Open now

The dashed line marks today.

Lake Township: Oct 29, 2026

Each bar is a filing window from its opening day to its last day. Forecasts show the expected closing range and are not official dates.Source: the official calendars and rules cited in the sources list below.

How often is property reassessed in Lake?

Lake Township is reassessed every three years with the City of Chicago; its scheduled reassessment years are 2024, 2027 and 2030.

Reassessment cycle
Lake Township is reassessed every three years with the City of Chicago; its scheduled reassessment years are 2024, 2027 and 2030.[3]

What do home values and property taxes look like in Lake?

Lake Township (2024 reassessment): total assessed value grew 31% at the Assessor's initial reassessment, before appeals (tax year 2024). Lake Township (2024 reassessment): the Assessor's median estimated market value for single-family homes was $194,000 (median 2023 sale price $225,000) (tax year 2024).

Assessed value change
Lake Township (2024 reassessment): total assessed value grew 31% at the Assessor's initial reassessment, before appeals.[4] (latest published: tax year 2024)
Median assessor estimate
Lake Township (2024 reassessment): the Assessor's median estimated market value for single-family homes was $194,000 (median 2023 sale price $225,000).[2] (latest published: tax year 2024)
Median condo price
Lake Township (2024 reassessment): condos had a median 2023 sale price of $131,000; the Assessor's median estimate was $128,000.[2] (latest published: tax year 2024)
Median sale price
Lake Township (2024 reassessment): the median sale price of single-family homes in 2023 was $225,000; the Assessor's median market value estimate for the class was $194,000.[4] (latest published: tax year 2024)
Median small apartment price
Lake Township (2024 reassessment): small apartment buildings had a median 2023 sale price of $251,000; the Assessor's median estimate was $213,000.[2] (latest published: tax year 2024)
Sales ratio standards
Lake Township (2024 reassessment): the Assessor's sales ratio analysis of single-family homes met 1 of 3 IAAO standards.[2] (latest published: tax year 2024)

Other places nearby

Illinois property tax appeals: all counties

Where do these facts come from?

  1. [1]Board of Review 2025 Re-Review/Decision Dates (PDF, Rev.6/9/2026) - Cook County Board of ReviewOfficial notice, form, calendar or rules · last checked Oct 1, 2026
  2. [2]Lake: Residential Valuations - Cook County Assessor's OfficeOfficial guide or FAQ · last checked Oct 1, 2026
  3. [3]Township Triennial Reassessment Schedule (PDF) - Cook County Board of ReviewOfficial notice, form, calendar or rules · last checked Oct 1, 2026
  4. [4]Property Values for Lake Township Released - Cook County Assessor's Office (press release, August 30, 2024)Official guide or FAQ · last checked Oct 1, 2026
  5. [5]Assessment & Appeal Calendar (page last updated 9/22/26) - Cook County Assessor's OfficeOfficial notice, form, calendar or rules · last checked Sep 24, 2026
  6. [6]35 ILCS 200/12-55 - Illinois Property Tax Code (ILGA; Wayback capture 2026-01-09)Statute or regulation · last checked Sep 24, 2026
  7. [7]Property reassessments released for Lake Township - Cook County Assessor's Office (press release, November 8, 2021)Official guide or FAQ · last checked Oct 1, 2026
  8. 8.County open data: cook assessmentsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  9. 9.County open data: cook parcelsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  10. 10.County open data: cook parcelsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  11. 11.County open data: cook parcelsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  12. 12.County open data: appeal resultsAggregated by us for the appeal-results chart.
  13. 13.County open data: appeal resultsAggregated by us for the appeal-results chart.

Not affiliated with Lake Township or any government agency. Not legal advice. Not an appraisal.