Cook County Value

21 E Eureka Ave Lemont, IL 60439

3 bed / 1 bath, 1,221 sqft, built 1929, in Lemont. Assessor market value for 2026: $340,000.

Cook County account 22291090510000

Assessor market value
$340,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,221 sqft
$278 per sqft
Year built
1929
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 25.9% from $270,000 in 2025 to $340,000 in 2026.
  • Assessor market value per square footThe current public record shows about $278 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 1,277 residential records in the same neighborhood, the average assessor market value is about $255 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +25.5% on average.

Comparable assessments

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

  • 724 Warner Ave Lemont, IL 60439
    1,343 sqft | $313/sqft | built 1925 | 10% larger (1,343 vs 1,221 sqft); Similar age (1925 vs 1929); Similar lot size (12,000 vs 12,600 sqft)
    $420,000
  • 405 Singer Ave Lemont, IL 60439
    1,221 sqft | $254/sqft | built 1920 | Similar size (1,221 vs 1,221 sqft); Lot 15% smaller (10,713 vs 12,600 sqft); Same quality (Average)
    $310,000
  • 2 E Division St Lemont, IL 60439
    1,324 sqft | $302/sqft | built 1930 | 8% larger (1,324 vs 1,221 sqft); Similar age (1930 vs 1929); Lot 11% larger (14,000 vs 12,600 sqft)
    $400,000
  • 37 E Custer St Lemont, IL 60439
    1,196 sqft | $276/sqft | built 1922 | Similar size (1,196 vs 1,221 sqft); Same quality (Average); Same bed/bath (3/1)
    $330,000
  • 901 State St Lemont, IL 60439
    1,102 sqft | $236/sqft | built 1918 | 10% smaller (1,102 vs 1,221 sqft); Similar lot size (11,550 vs 12,600 sqft); Same quality (Average)
    $260,000

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.

Value history

Up 25.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$340,000+$70,000+25.9%
2025$270,000$00.0%
2024$270,000$00.0%
2023$270,000+$69,050+34.4%
2022$200,950$00.0%
2021$200,950+$100.0%
2020$200,940——
6-year total+$139,060+69.2%