Cook County Value

642 Washington Ave, Glencoe, IL 60022

4 bed / 3 bath, 4,383 sqft, built 1930, in New Trier. Assessor market value for 2026: $1,973,090.

Cook County account 05073040010000

Assessor market value
$1,973,090
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,383 sqft
$450 per sqft
Year built
1930
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 60022 and New Trier assessment pages.

Local guide: New Trier Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for New Trier have closed (Assessor , Board of Review ). 2027 notices usually start in March.

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 decreased 4.7% from $2,070,000 in 2025 to $1,973,090 in 2026.
  • Assessor market value per square footThe current public record shows about $450 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the New Trier neighborhood and ZIP 60022.
  • Neighborhood value signalAmong 465 residential records in the same neighborhood, the average assessor market value is about $455 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.9% on average.

Comparable assessments

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

  • 580 Washington Ave, Glencoe, IL 60022
    4,498 sqft | $440/sqft | built 1925 | Similar size (4,498 vs 4,383 sqft); Similar age (1925 vs 1930); Similar lot size (19,264 vs 20,020 sqft)
    $1,980,000
  • 874 Valley Rd, Glencoe, IL 60022
    4,427 sqft | $422/sqft | built 1924 | Similar size (4,427 vs 4,383 sqft); Lot 20% smaller (16,102 vs 20,020 sqft); Same quality (Average)
    $1,870,000
  • 539 Washington Ave, Glencoe, IL 60022
    4,106 sqft | $449/sqft | built 1928 | 6% smaller (4,106 vs 4,383 sqft); Similar age (1928 vs 1930); Lot 12% smaller (17,654 vs 20,020 sqft)
    $1,845,190
  • 599 Washington Ave, Glencoe, IL 60022
    4,602 sqft | $427/sqft | built 1925 | Similar size (4,602 vs 4,383 sqft); Similar age (1925 vs 1930); Similar lot size (18,200 vs 20,020 sqft)
    $1,965,170
  • 612 Washington Ave, Glencoe, IL 60022
    4,846 sqft | $421/sqft | built 1931 | 11% larger (4,846 vs 4,383 sqft); Similar age (1931 vs 1930); Similar lot size (18,606 vs 20,020 sqft)
    $2,038,000

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

Down 4.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,973,090−$96,910−4.7%
2025$2,070,000+$547,530+36.0%
2024$1,522,470$00.0%
2023$1,522,470−$167,530−9.9%
2022$1,690,000+$616,180+57.4%
2021$1,073,820$00.0%
2020$1,073,820——
6-year total+$899,270+83.7%