Cook County Value

13889 Oak Tree Ln Lemont, IL 60439

4 bed / 2 bath, 4,067 sqft, built 1998, in Lemont. Assessor market value for 2026: $910,010.

Cook County account 22272040100000

Assessor market value
$910,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,067 sqft
$224 per sqft
Year built
1998
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 24.7% from $730,000 in 2025 to $910,010 in 2026.
  • Assessor market value per square footThe current public record shows about $224 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.

  • 13590 Cambridge Dr Lemont, IL 60439
    3,995 sqft | $245/sqft | built 2001 | Similar size (3,995 vs 4,067 sqft); Similar age (2001 vs 1998); Similar lot size (24,999 vs 24,180 sqft)
    $980,000
  • 11978 Oak Tree Ln Lemont, IL 60439
    4,220 sqft | $216/sqft | built 1996 | Similar size (4,220 vs 4,067 sqft); Similar age (1996 vs 1998); Similar lot size (25,500 vs 24,180 sqft)
    $910,010
  • 16619 Windsor Ct Lemont, IL 60439
    3,951 sqft | $238/sqft | built 2004 | Similar size (3,951 vs 4,067 sqft); Similar lot size (23,292 vs 24,180 sqft); Same quality (Average)
    $940,010
  • 13575 Cambridge Dr Lemont, IL 60439
    4,132 sqft | $305/sqft | built 2001 | Similar size (4,132 vs 4,067 sqft); Similar age (2001 vs 1998); Similar lot size (23,026 vs 24,180 sqft)
    $1,260,200
  • 13648 Cambridge Dr Lemont, IL 60439
    4,258 sqft | $230/sqft | built 2001 | Similar size (4,258 vs 4,067 sqft); Similar age (2001 vs 1998); Similar lot size (22,705 vs 24,180 sqft)
    $980,000

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 24.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$910,010+$180,010+24.7%
2025$730,000$00.0%
2024$730,000$00.0%
2023$730,000+$39,220+5.7%
2022$690,780$00.0%
2021$690,780$00.0%
2020$690,780——
6-year total+$219,230+31.7%