Cook County Value

902 Ash St, Winnetka, IL 60093

4 bed / 2 bath, 1,776 sqft, built 1909, in New Trier. Assessor market value for 2026: $870,010.

Cook County account 05202250150000

Assessor market value
$870,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,776 sqft
$490 per sqft
Year built
1909
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 60093 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 stayed about the same, from $870,010 in 2025 to $870,010 in 2026.
  • Assessor market value per square footThe current public record shows about $490 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 60093.
  • Neighborhood value signalAmong 609 residential records in the same neighborhood, the average assessor market value is about $514 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.0% on average.

Comparable assessments

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

  • 900 Oak St, Winnetka, IL 60093
    1,758 sqft | $548/sqft | built 1911 | Similar size (1,758 vs 1,776 sqft); Similar age (1911 vs 1909); Similar lot size (9,350 vs 9,350 sqft)
    $963,310
  • 906 Cherry St, Winnetka, IL 60093
    1,834 sqft | $507/sqft | built 1915 | Similar size (1,834 vs 1,776 sqft); Similar lot size (9,350 vs 9,350 sqft); Same quality (Average)
    $930,010
  • 946 Oak St, Winnetka, IL 60093
    1,836 sqft | $512/sqft | built 1914 | Similar size (1,836 vs 1,776 sqft); Similar age (1914 vs 1909); Similar lot size (9,500 vs 9,350 sqft)
    $940,880
  • 1047 Elm St, Winnetka, IL 60093
    1,776 sqft | $524/sqft | built 1917 | Similar size (1,776 vs 1,776 sqft); Similar lot size (8,850 vs 9,350 sqft); Same quality (Average)
    $930,010
  • 972 Elm St, Winnetka, IL 60093
    1,736 sqft | $504/sqft | built 1919 | Similar size (1,736 vs 1,776 sqft); Similar lot size (9,350 vs 9,350 sqft); Same quality (Average)
    $875,540

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: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$870,010$00.0%
2025$870,010+$10,990+1.3%
2024$859,020$00.0%
2023$859,020−$210,990−19.7%
2022$1,070,010+$475,160+79.9%
2021$594,850$00.0%
2020$594,850——
6-year total+$275,160+46.3%