Cook County Value

1274 Acorn St Lemont, IL 60439

4 bed / 2 bath, 3,329 sqft, built 1993, in Lemont. Assessor market value for 2026: $690,000.

Cook County account 22321140190000

Assessor market value
$690,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,329 sqft
$207 per sqft
Year built
1993
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 42.3% from $485,010 in 2025 to $690,000 in 2026.
  • Assessor market value per square footThe current public record shows about $207 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 2,806 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 +30.4% on average.

Comparable assessments

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

  • 1265 Eagle Crest Dr Lemont, IL 60439
    3,340 sqft | $207/sqft | built 1992 | Similar size (3,340 vs 3,329 sqft); Similar age (1992 vs 1993); Similar lot size (11,172 vs 11,172 sqft)
    $690,000
  • 1388 St. Vincents Dr Lemont, IL 60439
    3,367 sqft | $223/sqft | built 1993 | Similar size (3,367 vs 3,329 sqft); Built same year (1993); Similar lot size (11,448 vs 11,172 sqft)
    $750,000
  • 1025 Wild Oak Dr Lemont, IL 60439
    3,328 sqft | $225/sqft | built 1997 | Similar size (3,328 vs 3,329 sqft); Similar age (1997 vs 1993); Similar lot size (11,558 vs 11,172 sqft)
    $750,010
  • 1401 Chestnut Crossing Lemont, IL 60439
    3,368 sqft | $243/sqft | built 2000 | Similar size (3,368 vs 3,329 sqft); Similar lot size (11,178 vs 11,172 sqft); Same quality (Average)
    $820,000
  • 13010 Sunrise Dr Lemont, IL 60439
    3,305 sqft | $236/sqft | built 2001 | Similar size (3,305 vs 3,329 sqft); Similar lot size (11,200 vs 11,172 sqft); Same quality (Average)
    $780,000

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 42.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$690,000+$204,990+42.3%
2025$485,010−$84,990−14.9%
2024$570,000$00.0%
2023$570,000+$153,360+36.8%
2022$416,640$00.0%
2021$416,640+$100.0%
2020$416,630——
6-year total+$273,370+65.6%