Cook County Value

403 Keepataw Dr Lemont, IL 60439

3 bed / 1 bath, 1,160 sqft, built 1962, in Lemont. Assessor market value for 2026: $360,000.

Cook County account 22294130090000

Assessor market value
$360,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,160 sqft
$310 per sqft
Year built
1962
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 24.1% from $290,000 in 2025 to $360,000 in 2026.
  • Assessor market value per square footThe current public record shows about $310 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.

  • 407 Keepataw Dr Lemont, IL 60439
    1,215 sqft | $305/sqft | built 1963 | Similar size (1,215 vs 1,160 sqft); Similar age (1963 vs 1962); Similar lot size (8,850 vs 9,000 sqft)
    $370,000
  • 1029 Crestview Dr Lemont, IL 60439
    1,154 sqft | $329/sqft | built 1965 | Similar size (1,154 vs 1,160 sqft); Similar age (1965 vs 1962); Similar lot size (8,400 vs 9,000 sqft)
    $380,000
  • 1032 Forest Ln Lemont, IL 60439
    1,211 sqft | $297/sqft | built 1964 | Similar size (1,211 vs 1,160 sqft); Similar age (1964 vs 1962); Similar lot size (8,855 vs 9,000 sqft)
    $360,000
  • 1023 Hillview Dr Lemont, IL 60439
    1,160 sqft | $293/sqft | built 1962 | Similar size (1,160 vs 1,160 sqft); Built same year (1962); Lot 13% smaller (7,800 vs 9,000 sqft)
    $340,000
  • 1029 Hillview Dr Lemont, IL 60439
    1,160 sqft | $293/sqft | built 1963 | Similar size (1,160 vs 1,160 sqft); Similar age (1963 vs 1962); Lot 13% smaller (7,800 vs 9,000 sqft)
    $340,000

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: . 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 24.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$360,000+$70,000+24.1%
2025$290,000$00.0%
2024$290,000$00.0%
2023$290,000+$74,220+34.4%
2022$215,780$00.0%
2021$215,780+$100.0%
2020$215,770——
6-year total+$144,230+66.8%