Cook County Value

1087 Oak St, Winnetka, IL 60093

5 bed / 4 bath, 4,723 sqft, built 2016, in New Trier. Assessor market value for 2026: $2,852,400.

Cook County account 05201090170000

Assessor market value
$2,852,400
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,723 sqft
$604 per sqft
Year built
2016
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 decreased 7.5% from $3,082,030 in 2025 to $2,852,400 in 2026.
  • Assessor market value per square footThe current public record shows about $604 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.

  • 955 Elm St, Winnetka, IL 60093
    4,622 sqft | $573/sqft | built 2008 | Similar size (4,622 vs 4,723 sqft); Similar lot size (14,025 vs 14,160 sqft); Same quality (Average)
    $2,650,000
  • 860 Cherry St, Winnetka, IL 60093
    4,884 sqft | $604/sqft | built 2025 | Similar size (4,884 vs 4,723 sqft); Similar lot size (14,377 vs 14,160 sqft); Same quality (Average)
    $2,950,000
  • 1103 Spruce St, Winnetka, IL 60093
    5,153 sqft | $524/sqft | built 2006 | 9% larger (5,153 vs 4,723 sqft); Similar lot size (12,921 vs 14,160 sqft); Same quality (Average)
    $2,700,000
  • 1036 Elm St, Winnetka, IL 60093
    4,001 sqft | $732/sqft | built 2023 | Similar lot size (13,286 vs 14,160 sqft); Same quality (Average); Same neighborhood
    $2,930,530
  • 1015 Oak St, Winnetka, IL 60093
    4,830 sqft | $476/sqft | built 2016 | Similar size (4,830 vs 4,723 sqft); Built same year (2016); Same quality (Average)
    $2,300,010

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

Down 7.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$2,852,400−$229,630−7.5%
2025$3,082,030+$1,327,730+75.7%
2024$1,754,300−$71,840−3.9%
2023$1,826,140−$593,860−24.5%
2022$2,420,000+$880,460+57.2%
2021$1,539,540−$189,260−10.9%
2020$1,728,800——
6-year total+$1,123,600+65.0%