Cook County Value

13832 Oak Tree Ln Lemont, IL 60439

4 bed / 4 bath, 3,447 sqft, built 1996, in Lemont. Assessor market value for 2026: $820,000.

Cook County account 22272050130000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$820,000
Similar homes$869,161
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$820,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,447 sqft
$238 per sqft
Year built
1996
Average quality

What we found

Similar homes' assessments

Weak

1 of 8 similar homes is assessed lower per square foot. Their similarity-weighted median is $250.70/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $152,520. Counting your land in place of theirs where theirs is less, they support a value of $869,161.

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 24.2% from $660,000 in 2025 to $820,000 in 2026.
  • Assessor market value per square footThe current public record shows about $238 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

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

  • 12130 Oak Tree Ln Lemont, IL 60439
    3,496 sqft | $235/sqft | built 1996 | Similar size (3,496 vs 3,447 sqft); Built same year (1996); Similar lot size (16,500 vs 17,431 sqft)
    $820,010
  • 12291 St. James Way Lemont, IL 60439
    3,502 sqft | $243/sqft | built 2001 | Similar size (3,502 vs 3,447 sqft); Similar age (2001 vs 1996); Similar lot size (17,400 vs 17,431 sqft)
    $850,000
  • 12156 Oak Tree Ln Lemont, IL 60439
    3,364 sqft | $241/sqft | built 1998 | Similar size (3,364 vs 3,447 sqft); Similar age (1998 vs 1996); Similar lot size (18,875 vs 17,431 sqft)
    $810,000
  • 12655 Thornberry Dr Lemont, IL 60439
    3,521 sqft | $256/sqft | built 2004 | Similar size (3,521 vs 3,447 sqft); Similar lot size (16,317 vs 17,431 sqft); Same quality (Average)
    $900,000
  • 13470 Cambridge Dr Lemont, IL 60439
    3,245 sqft | $271/sqft | built 2001 | 6% smaller (3,245 vs 3,447 sqft); Similar age (2001 vs 1996); Similar lot size (17,220 vs 17,431 sqft)
    $880,010

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 24.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$820,000+$160,000+24.2%
2025$660,000$00.0%
2024$660,000$00.0%
2023$660,000+$131,900+25.0%
2022$528,100$00.0%
2021$528,100+$100.0%
2020$528,090——
6-year total+$291,910+55.3%