Cook County Value

1030 Tadeusz Way Lemont, IL 60439

3 bed / 3 bath, 3,276 sqft, built 2018, in Lemont Assessor market value for 2026: $990,000.

Cook County account 22274100030000

Assessor market value
$990,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,276 sqft
$302 per sqft
Year built
2018
Average quality

Compare this assessment

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.

Appeal deadlines

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.

Assessment snapshot

These public CCAO records highlight what may be worth checking before you file.

  • Assessment changeThe assessor market value changed from $592,690 in 2025 to $990,000 in 2026. A change this large often reflects new construction, a reclassification or a record correction, so check it against the county record.
  • Assessor market value per square footThe current public record shows about $302 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lemont neighborhood and ZIP 60439.
  • Neighborhood value signalAmong 380 residential records in the same neighborhood, the average assessor market value is about $246 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +25.8% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 1040 Tadeusz Way Lemont, IL 60439
    3,311 sqft | $314/sqft | built 2023 | Similar size (3,311 vs 3,276 sqft); Similar age (2023 vs 2018); Similar lot size (17,487 vs 17,487 sqft)
    $1,040,000
  • 1020 Tadeusz Way Lemont, IL 60439
    3,445 sqft | $316/sqft | built 2023 | 5% larger (3,445 vs 3,276 sqft); Similar age (2023 vs 2018); Similar lot size (17,539 vs 17,487 sqft)
    $1,090,000
  • 12690 Briarcliffe Dr Lemont, IL 60439
    3,336 sqft | $261/sqft | built 2013 | Similar size (3,336 vs 3,276 sqft); Similar age (2013 vs 2018); Similar lot size (16,723 vs 17,487 sqft)
    $870,000
  • 16642 Windsor Ct Lemont, IL 60439
    3,239 sqft | $259/sqft | built 2004 | Similar size (3,239 vs 3,276 sqft); Similar lot size (17,374 vs 17,487 sqft); Same quality (Average)
    $840,000
  • 12355 Thornberry Dr Lemont, IL 60439
    3,301 sqft | $239/sqft | built 2004 | Similar size (3,301 vs 3,276 sqft); Similar lot size (16,979 vs 17,487 sqft); Same quality (Average)
    $790,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 12554 Eileen St Lemont, IL 60439
    June-29-2026 | 3,421 sqft | $272/sqft | built 2025 | Similar size (3,421 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $930,895
  • 12655 Derry Dr Lemont, IL 60439
    June-29-2026 | 2,672 sqft | $266/sqft | built 2025 | Moderate age difference (7 years newer); Sold after the valuation date; Same beds (3)
    $710,150

Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 67.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$990,000+$397,310+67.0%
2025$592,690$00.0%
2024$592,690−$187,310−24.0%
2023$780,000+$267,690+52.3%
2022$512,310−$139,410−21.4%
2021$651,720−$18,470−2.8%
2020$670,190——
6-year total+$319,810+47.7%