Cook County Value

405 McCarthy Rd Lemont, IL 60439

3 bed / 1 bath, 1,232 sqft, built 1908, in Lemont. Assessor market value for 2026: $280,000.

Cook County account 22204350100000

Assessor market value
$280,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,232 sqft
$227 per sqft
Year built
1908
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 12.0% from $250,000 in 2025 to $280,000 in 2026.
  • Assessor market value per square footThe current public record shows about $227 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.

  • 230 Freehauf St Lemont, IL 60439
    1,164 sqft | $275/sqft | built 1908 | 6% smaller (1,164 vs 1,232 sqft); Built same year (1908); Similar lot size (7,407 vs 7,920 sqft)
    $320,000
  • 703 Ledochowski St Lemont, IL 60439
    1,208 sqft | $224/sqft | built 1908 | Similar size (1,208 vs 1,232 sqft); Built same year (1908); Lot 17% smaller (6,600 vs 7,920 sqft)
    $270,000
  • 219 Freehauf St Lemont, IL 60439
    1,310 sqft | $282/sqft | built 1901 | 6% larger (1,310 vs 1,232 sqft); Similar lot size (8,400 vs 7,920 sqft); Same quality (Average)
    $370,000
  • 8 E Illinois St Lemont, IL 60439
    1,293 sqft | $263/sqft | built 1898 | Similar size (1,293 vs 1,232 sqft); Lot 10% larger (8,712 vs 7,920 sqft); Same quality (Average)
    $340,000
  • 16028 W New Ave Lemont, IL 60439
    1,051 sqft | $228/sqft | built 1910 | 15% smaller (1,051 vs 1,232 sqft); Similar age (1910 vs 1908); Similar lot size (7,360 vs 7,920 sqft)
    $240,000

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 12.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$280,000+$30,000+12.0%
2025$250,000$00.0%
2024$250,000$00.0%
2023$250,000+$63,060+33.7%
2022$186,940$00.0%
2021$186,940$00.0%
2020$186,940——
6-year total+$93,060+49.8%