Cook County Value

36 Longcove Dr Lemont, IL 60439

3 bed / 3 bath, 3,101 sqft, built 1999, in Lemont Assessor market value for 2026: $810,010.

Cook County account 22341050150000

Assessor market value
$810,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,101 sqft
$261 per sqft
Year built
1999

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 27.5% from $635,490 in 2025 to $810,010 in 2026.
  • Assessor market value per square footThe current public record shows about $261 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 246 residential records in the same neighborhood, the average assessor market value is about $258 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +29.1% on average.

Comparable assessments

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

  • 39 Ruffled Feathers Dr Lemont, IL 60439
    2,935 sqft | $269/sqft | built 1995 | 5% smaller (2,935 vs 3,101 sqft); Similar age (1995 vs 1999); Similar lot size (21,080 vs 21,450 sqft)
    $790,000
  • 91 Ruffled Feathers Dr Lemont, IL 60439
    3,075 sqft | $280/sqft | built 1998 | Similar size (3,075 vs 3,101 sqft); Similar age (1998 vs 1999); Lot 12% smaller (18,875 vs 21,450 sqft)
    $860,000
  • 62 Longcove Dr Lemont, IL 60439
    2,951 sqft | $268/sqft | built 1998 | Similar size (2,951 vs 3,101 sqft); Similar age (1998 vs 1999); Similar lot size (22,125 vs 21,450 sqft)
    $790,000
  • 22 Sawgrass Dr Lemont, IL 60439
    3,102 sqft | $261/sqft | built 1996 | Similar size (3,102 vs 3,101 sqft); Similar age (1996 vs 1999); Lot 12% smaller (18,900 vs 21,450 sqft)
    $810,000
  • 18 Ruffled Feathers Dr Lemont, IL 60439
    3,282 sqft | $262/sqft | built 1994 | 6% larger (3,282 vs 3,101 sqft); Similar age (1994 vs 1999); Similar lot size (20,664 vs 21,450 sqft)
    $860,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1238 Acorn St Lemont, IL 60439
    2,802 sqft | $223/sqft | built 1990 | 10% size difference (2,802 sqft); Moderate age difference (9 years older); Same beds (3)
    $625,000
  • 11 Cedar Ct Lemont, IL 60439
    2,722 sqft | $253/sqft | built 1990 | 12% size difference (2,722 sqft); Moderate age difference (9 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: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 27.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$810,010+$174,520+27.5%
2025$635,490$00.0%
2024$635,490−$50,270−7.3%
2023$685,760+$114,090+20.0%
2022$571,670−$19,220−3.3%
2021$590,890−$41,100−6.5%
2020$631,990——
6-year total+$178,020+28.2%