Cook County Value

8 Longwood Way Lemont, IL 60439

4 bed / 2 bath, 2,858 sqft, built 1989, in Lemont. Assessor market value for 2026: $841,000.

Cook County account 22313040100000

Assessor market value
$841,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,858 sqft
$294 per sqft
Year built
1989
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 increased 28.7% from $653,390 in 2025 to $841,000 in 2026.
  • Assessor market value per square footThe current public record shows about $294 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 2,806 residential records in the same neighborhood, the average assessor market value is about $255 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +30.4% on average.

Comparable assessments

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 1 Longwood Way Lemont, IL 60439
    2,888 sqft | $246/sqft | built 1991 | Similar size (2,888 vs 2,858 sqft); Similar age (1991 vs 1989); Similar lot size (45,738 vs 47,828 sqft)
    $710,000
  • 4 Valley View Ct Lemont, IL 60439
    2,837 sqft | $243/sqft | built 1987 | Similar size (2,837 vs 2,858 sqft); Similar age (1987 vs 1989); Similar lot size (44,605 vs 47,828 sqft)
    $690,000
  • 15 Valley View Dr Lemont, IL 60439
    2,889 sqft | $256/sqft | built 1990 | Similar size (2,889 vs 2,858 sqft); Similar age (1990 vs 1989); Similar lot size (50,224 vs 47,828 sqft)
    $740,000
  • 8 Valley View Dr Lemont, IL 60439
    2,819 sqft | $241/sqft | built 1990 | Similar size (2,819 vs 2,858 sqft); Similar age (1990 vs 1989); Similar lot size (43,211 vs 47,828 sqft)
    $680,010
  • 1301 McCarthy Rd Lemont, IL 60439
    2,851 sqft | $239/sqft | built 1977 | Similar size (2,851 vs 2,858 sqft); Similar lot size (45,563 vs 47,828 sqft); Same quality (Average)
    $680,000

Recent comparable sales

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: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 28.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$841,000+$187,610+28.7%
2025$653,390+$81,000+14.2%
2024$572,390$00.0%
2023$572,390+$179,250+45.6%
2022$393,140$00.0%
2021$393,140+$100.0%
2020$393,130——
6-year total+$447,870+113.9%