Cook County Value

12602 Eileen St Lemont, IL 60439

5 bed / 4 bath, 3,625 sqft, built 2026, in Lemont. Assessor market value for 2026: $875,000.

Cook County account 22263070300000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$875,000
Similar homes$939,491
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$875,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,625 sqft
$241 per sqft
Year built
2026
Average quality

What we found

Similar homes' assessments

Weak

0 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $252.03/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $148,310. Counting your land in place of theirs where theirs is less, they support a value of $939,491.

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.

  • Assessor market value per square footThe current public record shows about $241 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

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

  • 12742 Corbett Ct Lemont, IL 60439
    3,478 sqft | $263/sqft | built 2026 | Similar size (3,478 vs 3,625 sqft); Built same year (2026); Similar lot size (16,376 vs 16,950 sqft)
    $915,000
  • 12503 Maggie Dr Lemont, IL 60439
    3,522 sqft | $244/sqft | built 2026 | Similar size (3,522 vs 3,625 sqft); Built same year (2026); Similar lot size (18,616 vs 16,950 sqft)
    $860,000
  • 12415 Eileen St Lemont, IL 60439
    3,706 sqft | $251/sqft | built 2024 | Similar size (3,706 vs 3,625 sqft); Similar age (2024 vs 2026); Similar lot size (15,497 vs 16,950 sqft)
    $930,000
  • 12498 Eileen St Lemont, IL 60439
    3,419 sqft | $284/sqft | built 2024 | 6% smaller (3,419 vs 3,625 sqft); Similar age (2024 vs 2026); Similar lot size (16,257 vs 16,950 sqft)
    $970,000
  • 12759 Corbett Ct Lemont, IL 60439
    3,690 sqft | $252/sqft | built 2026 | Similar size (3,690 vs 3,625 sqft); Built same year (2026); Same quality (Average)
    $930,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 12554 Eileen St Lemont, IL 60439
    June-29-2026 | 3,421 sqft | $272/sqft | built 2025 | 6% size difference (3,421 sqft); Similar age (2025); Sold after the valuation date
    $930,895
  • 12655 Derry Dr Lemont, IL 60439
    June-29-2026 | 2,672 sqft | $266/sqft | built 2025 | Similar age (2025); Sold after the valuation date
    $710,150

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.