Cook County Value

498 Senon Dr Lemont, IL 60439

4 bed / 2 bath, 2,912 sqft, built 1999, in Lemont. Assessor market value for 2026: $730,000.

Cook County account 22213080020000

Assessor market value
$730,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,912 sqft
$251 per sqft
Year built
1999
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 $450,010 in 2025 to $730,000 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 $251 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

Similar public appraisal records selected for this property's equity comparison.

  • 12968 Sunrise Dr Lemont, IL 60439
    2,913 sqft | $251/sqft | built 1998 | Similar size (2,913 vs 2,912 sqft); Similar age (1998 vs 1999); Similar lot size (11,200 vs 11,250 sqft)
    $730,000
  • 16527 Harvest Dr Lemont, IL 60439
    2,900 sqft | $287/sqft | built 1998 | Similar size (2,900 vs 2,912 sqft); Similar age (1998 vs 1999); Similar lot size (11,050 vs 11,250 sqft)
    $831,000
  • 1268 Camelot Ln Lemont, IL 60439
    2,898 sqft | $235/sqft | built 2000 | Similar size (2,898 vs 2,912 sqft); Similar age (2000 vs 1999); Similar lot size (10,878 vs 11,250 sqft)
    $680,010
  • 1602 Ashbury Dr Lemont, IL 60439
    2,914 sqft | $251/sqft | built 1998 | Similar size (2,914 vs 2,912 sqft); Similar age (1998 vs 1999); Similar lot size (10,998 vs 11,250 sqft)
    $730,010
  • 113 Doolin St Lemont, IL 60439
    2,929 sqft | $239/sqft | built 1993 | Similar size (2,929 vs 2,912 sqft); Similar lot size (11,250 vs 11,250 sqft); Same quality (Average)
    $700,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1238 Acorn St Lemont, IL 60439
    2,802 sqft | $223/sqft | built 1990 | Similar size (2,802 sqft); Moderate age difference (9 years older); Within 1 bedroom (3 vs 4)
    $625,000
  • 11 Cedar Ct Lemont, IL 60439
    2,722 sqft | $253/sqft | built 1990 | 6% size difference (2,722 sqft); Moderate age difference (9 years older); Same beds (4)
    $690,000
  • 1217 Woburn Dr Lemont, IL 60439
    2,576 sqft | $318/sqft | built 2016 | 12% size difference (2,576 sqft); Same beds (4)
    $819,000

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 62.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$730,000+$279,990+62.2%
2025$450,010−$93,700−17.2%
2024$543,710$00.0%
2023$543,710+$151,710+38.7%
2022$392,000$00.0%
2021$392,000−$43,290−9.9%
2020$435,290——
6-year total+$294,710+67.7%