Cook County Value

546 McCarthy St Lemont, IL 60439

3 bed / 2 bath, 1,343 sqft, built 1971, in Lemont. Assessor market value for 2026: $318,490.

Cook County account 22292090070000

Likely too high

about $57,000

8 similar homes nearby point to a value about $57,000 lower than yours.

Assessor market value$318,490
Similar homes$261,374
$57,116 gap · bars start at $0

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

Assessor market value
$318,490
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,343 sqft
$237 per sqft
Year built
1971
Average quality

Why we think so

Similar homes' assessments

Strong

6 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $193.72/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 $34,910. Counting your land in place of theirs where theirs is less, they support a value of $261,374.

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 32.1% from $241,050 in 2025 to $318,490 in 2026.
  • Assessor market value per square footThe current public record shows about $237 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

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

  • 708 Houston St Lemont, IL 60439
    1,335 sqft | $217/sqft | built 1978 | Similar size (1,335 vs 1,343 sqft); Similar lot size (3,990 vs 3,990 sqft); Same quality (Average)
    $289,960
  • 721 Houston St Lemont, IL 60439
    1,317 sqft | $152/sqft | built 1978 | Similar size (1,317 vs 1,343 sqft); Similar lot size (3,990 vs 3,990 sqft); Same quality (Average)
    $200,450
  • 714 McCarthy St Lemont, IL 60439
    1,391 sqft | $97/sqft | built 1977 | Similar size (1,391 vs 1,343 sqft); Similar lot size (3,990 vs 3,990 sqft); Same quality (Average)
    $135,440
  • 714 McCarthy St Lemont, IL 60439
    1,391 sqft | $194/sqft | built 1977 | Similar size (1,391 vs 1,343 sqft); Similar lot size (3,990 vs 3,990 sqft); Same quality (Average)
    $269,470
  • 718 McCarthy St Lemont, IL 60439
    1,391 sqft | $273/sqft | built 1977 | Similar size (1,391 vs 1,343 sqft); Similar lot size (3,990 vs 3,990 sqft); Same quality (Average)
    $380,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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 32.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$318,490+$77,440+32.1%
2025$241,050$00.0%
2024$241,050$00.0%
2023$241,050+$49,920+26.1%
2022$191,130$00.0%
2021$191,130+$100.0%
2020$191,120——
6-year total+$127,370+66.6%