Cook County Value

12554 Eileen St Lemont, IL 60439

4 bed / 2 bath, 3,442 sqft, built 2026, in Lemont Assessor market value for 2026: $875,000.

Cook County account 22263070240000

Assessor market value
$875,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,442 sqft
$254 per sqft
Year built
2026
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.

  • Assessor market value per square footThe current public record shows about $254 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.

  • 12568 Maggie Dr Lemont, IL 60439
    3,419 sqft | $281/sqft | built 2024 | Similar size (3,419 vs 3,442 sqft); Similar age (2024 vs 2026); Similar lot size (11,529 vs 11,552 sqft)
    $960,000
  • 12414 Conneely Ct Lemont, IL 60439
    3,480 sqft | $262/sqft | built 2025 | Similar size (3,480 vs 3,442 sqft); Similar age (2025 vs 2026); Similar lot size (11,452 vs 11,552 sqft)
    $910,010
  • 12389 Killarney Dr Lemont, IL 60439
    3,360 sqft | $265/sqft | built 2026 | Similar size (3,360 vs 3,442 sqft); Built same year (2026); Similar lot size (11,595 vs 11,552 sqft)
    $890,000
  • 12409 Conneely Ct Lemont, IL 60439
    3,480 sqft | $259/sqft | built 2026 | Similar size (3,480 vs 3,442 sqft); Built same year (2026); Similar lot size (11,231 vs 11,552 sqft)
    $900,000
  • 12644 Rossaveal Ave Lemont, IL 60439
    3,460 sqft | $260/sqft | built 2024 | Similar size (3,460 vs 3,442 sqft); Similar age (2024 vs 2026); Similar lot size (11,493 vs 11,552 sqft)
    $900,000

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: . Matches consider available size, age, location and property characteristics. How comparisons work.

Recent sale history

Recent transfers help establish whether the county value is tracking real market behavior.

  • $930,895 sale recorded on June-29-2026