4 bed / 3 bath, 3,675 sqft, built 2021, in Lemont Assessor market value for 2026: $870,000.
Cook County account 22344140030000
Start with the county value and property facts, then review appraisal comps, recent sales, and prior-year changes to decide whether the assessment is worth challenging. The comps on this page are free to review; email sign-in is only used to save a printable report.
For nearby context, browse ZIP 60439 and Lemont assessment pages.
Local guide: Lemont Township 2026 Property Tax Appeal Guide.
For Lemont, appeals to the Assessor closed . Board of Review dates for Lemont have not been published yet.
Deadline rule: Set by township: file with the Assessor by your township's last file date, and with the Board of Review while your township is open there. Evidence is reviewed by the Cook County Assessor's Office or, in a separate appeal, by the Cook County Board of Review. Dates checked against the official source.
These public CCAO records highlight what may be worth checking before you file.
Similar public appraisal records selected for this property's equity comparison.
Sales selected by similarity to the subject property.
Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.
Up 32.5% in 2026 from 2025.
| Tax year | Assessor market value | Change | Change % |
|---|---|---|---|
| 2026 | $870,000 | +$213,150 | +32.5% |
| 2025 | $656,850 | −$23,150 | −3.4% |
| 2024 | $680,000 | $0 | 0.0% |
| 2023 | $680,000 | +$74,090 | +12.2% |
| 2022 | $605,910 | +$342,610 | +130.1% |
| 2021 | $263,300 | +$182,970 | +227.8% |
| 2020 | $80,330 | — | — |
| 6-year total | +$789,670 | +983.0% |