Cook County Value

611 Oak St, Winnetka, IL 60093

4 bed / 2 bath, 2,412 sqft, built 1898, in New Trier. Assessor market value for 2026: $1,125,250.

Cook County account 05211110060000

Assessor market value
$1,125,250
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,412 sqft
$467 per sqft
Year built
1898
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 12.6% from $1,287,000 in 2025 to $1,125,250 in 2026.
  • Assessor market value per square footThe current public record shows about $467 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.

  • 841 Prospect Ave, Winnetka, IL 60093
    2,478 sqft | $494/sqft | built 1899 | Similar size (2,478 vs 2,412 sqft); Similar age (1899 vs 1898); Similar lot size (7,500 vs 7,040 sqft)
    $1,222,940
  • 652 Lincoln Ave, Winnetka, IL 60093
    2,421 sqft | $474/sqft | built 1899 | Similar size (2,421 vs 2,412 sqft); Similar age (1899 vs 1898); Similar lot size (7,655 vs 7,040 sqft)
    $1,148,220
  • 806 Locust St, Winnetka, IL 60093
    2,356 sqft | $454/sqft | built 1904 | Similar size (2,356 vs 2,412 sqft); Similar lot size (7,497 vs 7,040 sqft); Same quality (Average)
    $1,070,000
  • 830 Tower Rd, Winnetka, IL 60093
    2,512 sqft | $499/sqft | built 1901 | Similar size (2,512 vs 2,412 sqft); Similar age (1901 vs 1898); Similar lot size (7,500 vs 7,040 sqft)
    $1,254,530
  • 535 Willow Rd, Winnetka, IL 60093
    2,196 sqft | $511/sqft | built 1898 | 9% smaller (2,196 vs 2,412 sqft); Built same year (1898); Similar lot size (7,280 vs 7,040 sqft)
    $1,122,830

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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 12.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,125,250−$161,750−12.6%
2025$1,287,000+$511,500+66.0%
2024$775,500−$57,290−6.9%
2023$832,790$00.0%
2022$832,790+$227,120+37.5%
2021$605,670$00.0%
2020$605,670——
6-year total+$519,580+85.8%