Cook County Value

1603 Ashbury Dr Lemont, IL 60439

5 bed / 2 bath, 2,861 sqft, built 1995, in Lemont. Assessor market value for 2026: $680,000.

Cook County account 22331120100000

In line with similar homes

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

Assessor market value$680,000
Similar homes$694,507
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
$680,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,861 sqft
$238 per sqft
Year built
1995
Average quality

What we found

Similar homes' assessments

Weak

1 of 8 similar homes is assessed lower per square foot. Their similarity-weighted median is $242.30/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 $79,960. Counting your land in place of theirs where theirs is less, they support a value of $694,507.

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 34.1% from $507,080 in 2025 to $680,000 in 2026.
  • Assessor market value per square footThe current public record shows about $238 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

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

  • 15146 129th St Lemont, IL 60439
    2,840 sqft | $243/sqft | built 1996 | Similar size (2,840 vs 2,861 sqft); Similar age (1996 vs 1995); Similar lot size (10,320 vs 10,317 sqft)
    $690,000
  • 142 Timberline Dr Lemont, IL 60439
    2,889 sqft | $242/sqft | built 1997 | Similar size (2,889 vs 2,861 sqft); Similar age (1997 vs 1995); Similar lot size (10,250 vs 10,317 sqft)
    $700,000
  • 140 Timberline Dr Lemont, IL 60439
    2,879 sqft | $243/sqft | built 1996 | Similar size (2,879 vs 2,861 sqft); Similar age (1996 vs 1995); Similar lot size (10,582 vs 10,317 sqft)
    $700,000
  • 127 Timberline Dr Lemont, IL 60439
    2,889 sqft | $225/sqft | built 1995 | Similar size (2,889 vs 2,861 sqft); Built same year (1995); Similar lot size (9,960 vs 10,317 sqft)
    $650,000
  • 1271 Abbey Oaks Dr Lemont, IL 60439
    2,862 sqft | $241/sqft | built 1996 | Similar size (2,862 vs 2,861 sqft); Similar age (1996 vs 1995); Similar lot size (10,800 vs 10,317 sqft)
    $690,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1238 Acorn St Lemont, IL 60439
    2,802 sqft | $223/sqft | built 1990 | Similar size (2,802 sqft); Moderate age difference (5 years older)
    $625,000
  • 11 Cedar Ct Lemont, IL 60439
    2,722 sqft | $253/sqft | built 1990 | Similar size (2,722 sqft); Moderate age difference (5 years older); Within 1 bedroom (4 vs 5)
    $690,000

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 34.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$680,000+$172,920+34.1%
2025$507,080−$32,920−6.1%
2024$540,000$00.0%
2023$540,000+$123,380+29.6%
2022$416,620$00.0%
2021$416,620$00.0%
2020$416,620——
6-year total+$263,380+63.2%