Cook County Value

4 Aspen Ct Lemont, IL 60439

3 bed / 2 bath, 1,681 sqft, built 1989, in Lemont. Assessor market value for 2026: $510,000.

Cook County account 22302070570000

Assessor market value
$510,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,681 sqft
$303 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 20.1% from $424,480 in 2025 to $510,000 in 2026.
  • Assessor market value per square footThe current public record shows about $303 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 437 residential records in the same neighborhood, the average assessor market value is about $261 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +25.7% on average.

Comparable assessments

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

  • 23 W Eureka Ave Lemont, IL 60439
    1,718 sqft | $285/sqft | built 1976 | Similar size (1,718 vs 1,681 sqft); Similar lot size (17,420 vs 19,142 sqft); Same quality (Average)
    $490,010
  • 912 Walter St Lemont, IL 60439
    1,739 sqft | $265/sqft | built 1987 | Similar size (1,739 vs 1,681 sqft); Similar age (1987 vs 1989); Lot 17% smaller (15,950 vs 19,142 sqft)
    $460,000
  • 49 Evergreen Dr Lemont, IL 60439
    1,557 sqft | $308/sqft | built 1987 | 7% smaller (1,557 vs 1,681 sqft); Similar age (1987 vs 1989); Lot 10% smaller (17,134 vs 19,142 sqft)
    $480,000
  • 670 Kruk St Lemont, IL 60439
    1,675 sqft | $316/sqft | built 1987 | Similar size (1,675 vs 1,681 sqft); Similar age (1987 vs 1989); Same quality (Average)
    $530,000
  • 39 W Eureka Ave Lemont, IL 60439
    1,630 sqft | $282/sqft | built 1974 | Similar size (1,630 vs 1,681 sqft); Lot 11% smaller (17,092 vs 19,142 sqft); Same quality (Average)
    $460,010

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 20.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$510,000+$85,520+20.1%
2025$424,480−$15,520−3.5%
2024$440,000$00.0%
2023$440,000+$84,320+23.7%
2022$355,680$00.0%
2021$355,680+$100.0%
2020$355,670——
6-year total+$154,330+43.4%