Cook County Value

1189 Oakley Ave, Winnetka, IL 60093

6 bed / 4 bath, 3,826 sqft, built 1908, in New Trier. Assessor market value for 2026: $1,648,640.

Cook County account 05171190100000

Assessor market value
$1,648,640
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,826 sqft
$431 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 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 10.9% from $1,850,000 in 2025 to $1,648,640 in 2026.
  • Assessor market value per square footThe current public record shows about $431 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 1,469 residential records in the same neighborhood, the average assessor market value is about $518 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.0% on average.

Comparable assessments

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

  • 862 Prospect Ave, Winnetka, IL 60093
    3,992 sqft | $421/sqft | built 1908 | Similar size (3,992 vs 3,826 sqft); Built same year (1908); Similar lot size (13,797 vs 13,916 sqft)
    $1,679,700
  • 535 Ash St, Winnetka, IL 60093
    3,833 sqft | $515/sqft | built 1913 | Similar size (3,833 vs 3,826 sqft); Similar age (1913 vs 1908); Similar lot size (13,090 vs 13,916 sqft)
    $1,973,490
  • 1153 Oakley Ave, Winnetka, IL 60093
    3,987 sqft | $417/sqft | built 1919 | Similar size (3,987 vs 3,826 sqft); Similar lot size (14,000 vs 13,916 sqft); Same quality (Average)
    $1,663,410
  • 1181 Oakley Ave, Winnetka, IL 60093
    3,892 sqft | $469/sqft | built 1916 | Similar size (3,892 vs 3,826 sqft); Similar lot size (14,000 vs 13,916 sqft); Same quality (Average)
    $1,826,210
  • 859 Burr Ave, Winnetka, IL 60093
    3,589 sqft | $467/sqft | built 1912 | 6% smaller (3,589 vs 3,826 sqft); Similar age (1912 vs 1908); Similar lot size (13,607 vs 13,916 sqft)
    $1,675,940

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 10.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,648,640−$201,360−10.9%
2025$1,850,000+$678,000+57.8%
2024$1,172,000$00.0%
2023$1,172,000$00.0%
2022$1,172,000+$150,390+14.7%
2021$1,021,610$00.0%
2020$1,021,610——
6-year total+$627,030+61.4%