Cook County Value

1241 Notre Dame Dr Lemont, IL 60439

3 bed / 2 bath, 2,582 sqft, built 1998, in Lemont. Assessor market value for 2026: $620,000.

Cook County account 22284130250000

Assessor market value
$620,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,582 sqft
$240 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 31.1% from $472,770 in 2025 to $620,000 in 2026.
  • Assessor market value per square footThe current public record shows about $240 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.

  • 630 S Kromray Rd Lemont, IL 60439
    2,576 sqft | $233/sqft | built 1996 | Similar size (2,576 vs 2,582 sqft); Similar age (1996 vs 1998); Similar lot size (10,710 vs 10,656 sqft)
    $600,000
  • 12965 Rolling Meadows Dr Lemont, IL 60439
    2,599 sqft | $242/sqft | built 1998 | Similar size (2,599 vs 2,582 sqft); Built same year (1998); Similar lot size (10,400 vs 10,656 sqft)
    $630,000
  • 548 Carriage Ridge Ln Lemont, IL 60439
    2,575 sqft | $241/sqft | built 1995 | Similar size (2,575 vs 2,582 sqft); Similar age (1995 vs 1998); Similar lot size (10,920 vs 10,656 sqft)
    $620,000
  • 13053 Sunrise Dr Lemont, IL 60439
    2,575 sqft | $245/sqft | built 1998 | Similar size (2,575 vs 2,582 sqft); Built same year (1998); Similar lot size (10,400 vs 10,656 sqft)
    $630,000
  • 390 S Kromray Rd Lemont, IL 60439
    2,560 sqft | $258/sqft | built 1998 | Similar size (2,560 vs 2,582 sqft); Built same year (1998); Similar lot size (10,500 vs 10,656 sqft)
    $660,010

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1238 Acorn St Lemont, IL 60439
    2,802 sqft | $223/sqft | built 1990 | 8% size difference (2,802 sqft); Moderate age difference (8 years older); Same beds (3)
    $625,000
  • 1217 Woburn Dr Lemont, IL 60439
    2,576 sqft | $318/sqft | built 2016 | Similar size (2,576 sqft); Within 1 bedroom (4 vs 3)
    $819,000
  • 11 Cedar Ct Lemont, IL 60439
    2,722 sqft | $253/sqft | built 1990 | 5% size difference (2,722 sqft); Moderate age difference (8 years older); Within 1 bedroom (4 vs 3)
    $690,000

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 31.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$620,000+$147,230+31.1%
2025$472,770$00.0%
2024$472,770$00.0%
2023$472,770+$105,520+28.7%
2022$367,250−$19,140−5.0%
2021$386,390+$100.0%
2020$386,380——
6-year total+$233,620+60.5%