Cook County Value

411 Singer Ave Lemont, IL 60439

3 bed / 1 bath, 1,385 sqft, built 1929, in Lemont. Assessor market value for 2026: $420,000.

Cook County account 22203180050000

Assessor market value
$420,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,385 sqft
$303 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 45.6% from $288,550 in 2025 to $420,000 in 2026.
  • Assessor market value per square footThe current public record shows about $303 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.

  • 1 E Logan St Lemont, IL 60439
    1,392 sqft | $230/sqft | built 1935 | Similar size (1,392 vs 1,385 sqft); Similar lot size (8,820 vs 8,339 sqft); Same quality (Average)
    $320,010
  • 214 Lincoln St Lemont, IL 60439
    1,376 sqft | $247/sqft | built 1936 | Similar size (1,376 vs 1,385 sqft); Similar lot size (8,448 vs 8,339 sqft); Same quality (Average)
    $340,000
  • 708 McCarthy Rd Lemont, IL 60439
    1,320 sqft | $220/sqft | built 1932 | Similar size (1,320 vs 1,385 sqft); Similar age (1932 vs 1929); Similar lot size (8,121 vs 8,339 sqft)
    $290,000
  • 421 Grant St Lemont, IL 60439
    1,315 sqft | $236/sqft | built 1933 | 5% smaller (1,315 vs 1,385 sqft); Similar age (1933 vs 1929); Similar lot size (8,475 vs 8,339 sqft)
    $310,000
  • 724 Walnut St Lemont, IL 60439
    1,510 sqft | $238/sqft | built 1930 | 9% larger (1,510 vs 1,385 sqft); Similar age (1930 vs 1929); Similar lot size (8,294 vs 8,339 sqft)
    $360,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 708 McCarthy Rd Lemont, IL 60439
    1,320 sqft | $292/sqft | built 1932 | Similar size (1,320 sqft); Similar age (1932); Same beds (3)
    $385,000

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 45.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$420,000+$131,450+45.6%
2025$288,550−$46,500−13.9%
2024$335,050−$30,950−8.5%
2023$366,000+$165,650+82.7%
2022$200,350$00.0%
2021$200,350+$100.0%
2020$200,340——
6-year total+$219,660+109.6%