Cook County Value

1240 Tower Rd, Winnetka, IL 60093

5 bed / 3 bath, 4,212 sqft, built 1902, in New Trier. Assessor market value for 2026: $1,640,000.

Cook County account 05173000540000

Assessor market value
$1,640,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,212 sqft
$389 per sqft
Year built
1902
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 $1,640,000 in 2025 to $1,640,000 in 2026.
  • Assessor market value per square footThe current public record shows about $389 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.

  • 559 Oak St, Winnetka, IL 60093
    4,202 sqft | $609/sqft | built 1898 | Similar size (4,202 vs 4,212 sqft); Similar age (1898 vs 1902); Lot 11% larger (23,460 vs 21,083 sqft)
    $2,560,000
  • 708 Prospect Ave, Winnetka, IL 60093
    4,285 sqft | $513/sqft | built 1894 | Similar size (4,285 vs 4,212 sqft); Similar lot size (22,704 vs 21,083 sqft); Same quality (Average)
    $2,197,600
  • 760 Bryant Ave, Winnetka, IL 60093
    3,986 sqft | $418/sqft | built 1912 | 5% smaller (3,986 vs 4,212 sqft); Similar lot size (21,400 vs 21,083 sqft); Same quality (Average)
    $1,667,550
  • 644 Spruce St, Winnetka, IL 60093
    4,342 sqft | $523/sqft | built 1894 | Similar size (4,342 vs 4,212 sqft); Lot 16% smaller (17,774 vs 21,083 sqft); Same quality (Average)
    $2,270,980
  • 622 Oak St, Winnetka, IL 60093
    4,254 sqft | $493/sqft | built 1900 | Similar size (4,254 vs 4,212 sqft); Similar age (1900 vs 1902); Same quality (Average)
    $2,098,530

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

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$1,640,000$00.0%
2025$1,640,000+$220,000+15.5%
2024$1,420,000$00.0%
2023$1,420,000$00.0%
2022$1,420,000+$271,310+23.6%
2021$1,148,690+$200.0%
2020$1,148,670——
6-year total+$491,330+42.8%