Cook County Value

1220 Ash St, Winnetka, IL 60093

4 bed / 3 bath, 4,352 sqft, built 1952, in New Trier. Assessor market value for 2026: $1,625,470.

Cook County account 05201190280000

Assessor market value
$1,625,470
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,352 sqft
$373 per sqft
Year built
1952
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 6.8% from $1,744,430 in 2025 to $1,625,470 in 2026.
  • Assessor market value per square footThe current public record shows about $374 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 229 residential records in the same neighborhood, the average assessor market value is about $422 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.2% on average.

Comparable assessments

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

  • 1247 Elm St, Winnetka, IL 60093
    4,161 sqft | $442/sqft | built 1949 | Similar size (4,161 vs 4,352 sqft); Similar age (1949 vs 1952); Similar lot size (13,050 vs 14,025 sqft)
    $1,840,000
  • 1212 Ash St, Winnetka, IL 60093
    3,867 sqft | $372/sqft | built 1951 | 11% smaller (3,867 vs 4,352 sqft); Similar age (1951 vs 1952); Similar lot size (14,025 vs 14,025 sqft)
    $1,440,000
  • 1245 Sunset Rd, Winnetka, IL 60093
    4,027 sqft | $328/sqft | built 1961 | 8% smaller (4,027 vs 4,352 sqft); Similar lot size (15,009 vs 14,025 sqft); Same quality (Average)
    $1,320,000
  • 288 Auburn Ave, Winnetka, IL 60093
    4,514 sqft | $357/sqft | built 1961 | Similar size (4,514 vs 4,352 sqft); Similar lot size (14,983 vs 14,025 sqft); Same quality (Average)
    $1,609,800
  • 1185 Elm St, Winnetka, IL 60093
    3,614 sqft | $350/sqft | built 1951 | Similar age (1951 vs 1952); Similar lot size (13,920 vs 14,025 sqft); Same quality (Average)
    $1,265,000

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 6.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,625,470−$118,960−6.8%
2025$1,744,430+$487,530+38.8%
2024$1,256,900−$136,650−9.8%
2023$1,393,550−$127,600−8.4%
2022$1,521,150+$611,010+67.1%
2021$910,140−$298,060−24.7%
2020$1,208,200——
6-year total+$417,270+34.5%