Cook County Value

429 Keepataw Dr Lemont, IL 60439

3 bed / 2 bath, 2,005 sqft, built 1987, in Lemont. Assessor market value for 2026: $530,010.

Cook County account 22294140140000

Assessor market value
$530,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,005 sqft
$264 per sqft
Year built
1987
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 38.6% from $382,510 in 2025 to $530,010 in 2026.
  • Assessor market value per square footThe current public record shows about $264 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 858 residential records in the same neighborhood, the average assessor market value is about $264 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +21.4% on average.

Comparable assessments

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

  • 1135 Glenys Dr Lemont, IL 60439
    1,998 sqft | $250/sqft | built 1986 | Similar size (1,998 vs 2,005 sqft); Similar age (1986 vs 1987); Similar lot size (11,200 vs 11,900 sqft)
    $500,000
  • 500 Keepataw Dr Lemont, IL 60439
    2,037 sqft | $250/sqft | built 1986 | Similar size (2,037 vs 2,005 sqft); Similar age (1986 vs 1987); Similar lot size (11,090 vs 11,900 sqft)
    $510,000
  • 801 Houston St Lemont, IL 60439
    2,071 sqft | $232/sqft | built 1985 | Similar size (2,071 vs 2,005 sqft); Similar age (1985 vs 1987); Similar lot size (11,815 vs 11,900 sqft)
    $480,000
  • 536 Keepataw Dr Lemont, IL 60439
    2,001 sqft | $250/sqft | built 1980 | Similar size (2,001 vs 2,005 sqft); Similar lot size (12,510 vs 11,900 sqft); Same quality (Average)
    $500,000
  • 7 Glenview Ln Lemont, IL 60439
    2,067 sqft | $237/sqft | built 1977 | Similar size (2,067 vs 2,005 sqft); Similar lot size (11,741 vs 11,900 sqft); Same quality (Average)
    $490,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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 38.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$530,010+$147,500+38.6%
2025$382,510$00.0%
2024$382,510−$67,490−15.0%
2023$450,000+$180,060+66.7%
2022$269,940$00.0%
2021$269,940−$30,350−10.1%
2020$300,290——
6-year total+$229,720+76.5%