Cook County Value

280 Sheridan Rd, Winnetka, IL 60093

5 bed / 3 bath, 4,470 sqft, built 1914, in New Trier. Assessor market value for 2026: $2,440,000.

Cook County account 05214080080000

Assessor market value
$2,440,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,470 sqft
$546 per sqft
Year built
1914
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 $2,440,000 in 2025 to $2,440,000 in 2026.
  • Assessor market value per square footThe current public record shows about $546 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

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 777 Bryant Ave, Winnetka, IL 60093
    3,948 sqft | $555/sqft | built 1917 | 12% smaller (3,948 vs 4,470 sqft); Similar age (1917 vs 1914); Similar lot size (25,742 vs 24,800 sqft)
    $2,190,000
  • 345 Elder Ln, Winnetka, IL 60093
    4,412 sqft | $493/sqft | built 1916 | Similar size (4,412 vs 4,470 sqft); Similar age (1916 vs 1914); Same quality (Average)
    $2,176,020
  • 1240 Tower Rd, Winnetka, IL 60093
    4,212 sqft | $389/sqft | built 1902 | 6% smaller (4,212 vs 4,470 sqft); Lot 15% smaller (21,083 vs 24,800 sqft); Same quality (Average)
    $1,640,000
  • 1206 Tower Rd, Winnetka, IL 60093
    4,118 sqft | $430/sqft | built 1925 | 8% smaller (4,118 vs 4,470 sqft); Similar lot size (22,542 vs 24,800 sqft); Same quality (Average)
    $1,770,000
  • 775 Lincoln Ave, Winnetka, IL 60093
    4,556 sqft | $494/sqft | built 1927 | Similar size (4,556 vs 4,470 sqft); Similar lot size (22,500 vs 24,800 sqft); Same quality (Average)
    $2,249,030

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$2,440,000$00.0%
2025$2,440,000+$550,000+29.1%
2024$1,890,000$00.0%
2023$1,890,000$00.0%
2022$1,890,000+$508,930+36.9%
2021$1,381,070+$100.0%
2020$1,381,060——
6-year total+$1,058,940+76.7%