Cook County Value

13100 Fox Ln Lemont, IL 60439

4 bed / 4 bath, 5,492 sqft, built 1998, in Lemont. Assessor market value for 2026: $1,800,000.

Cook County account 22334000250000

Assessor market value
$1,800,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
5,492 sqft
$328 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 changed from $889,510 in 2025 to $1,800,000 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 $328 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.

  • 13528 Spruce Ct Lemont, IL 60439
    5,424 sqft | $245/sqft | built 1997 | Similar size (5,424 vs 5,492 sqft); Similar age (1997 vs 1998); Same quality (Average)
    $1,330,550
  • 14488 Hawthorne Dr Lemont, IL 60439
    5,587 sqft | $181/sqft | built 2002 | Similar size (5,587 vs 5,492 sqft); Similar age (2002 vs 1998); Same quality (Average)
    $1,010,010
  • Unknown Unknown
    4,461 sqft | $280/sqft | built 2004 | Similar lot size (85,604 vs 85,813 sqft); Same quality (Average); Same neighborhood
    $1,250,000
  • 13410 King Rd Lemont, IL 60439
    6,182 sqft | $218/sqft | built 2006 | 13% larger (6,182 vs 5,492 sqft); Lot 12% larger (96,267 vs 85,813 sqft); Same quality (Average)
    $1,350,000
  • 15200 129th St Lemont, IL 60439
    6,349 sqft | $195/sqft | built 2000 | Similar age (2000 vs 1998); Same quality (Average); Same neighborhood
    $1,240,000

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 102.4% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,800,000+$910,490+102.4%
2025$889,510$00.0%
2024$889,510−$113,280−11.3%
2023$1,002,790+$245,000+32.3%
2022$757,790$00.0%
2021$757,790+$100.0%
2020$757,780——
6-year total+$1,042,220+137.5%