Cook County Value

603 Provident Ave, Winnetka, IL 60093

5 bed / 4 bath, 3,288 sqft, built 2003, in New Trier. Assessor market value for 2026: $1,905,630.

Cook County account 05202010040000

Assessor market value
$1,905,630
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,288 sqft
$580 per sqft
Year built
2003
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 4.2% from $1,990,000 in 2025 to $1,905,630 in 2026.
  • Assessor market value per square footThe current public record shows about $580 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 609 residential records in the same neighborhood, the average assessor market value is about $514 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.0% on average.

Comparable assessments

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

  • 856 Oak St, Winnetka, IL 60093
    3,276 sqft | $550/sqft | built 2009 | Similar size (3,276 vs 3,288 sqft); Similar lot size (8,804 vs 8,556 sqft); Same quality (Average)
    $1,802,260
  • 1063 Oak St, Winnetka, IL 60093
    3,185 sqft | $553/sqft | built 2002 | Similar size (3,185 vs 3,288 sqft); Similar age (2002 vs 2003); Similar lot size (8,850 vs 8,556 sqft)
    $1,760,790
  • 1020 Spruce St, Winnetka, IL 60093
    3,272 sqft | $547/sqft | built 2001 | Similar size (3,272 vs 3,288 sqft); Similar age (2001 vs 2003); Similar lot size (8,850 vs 8,556 sqft)
    $1,789,480
  • 563 Provident Ave, Winnetka, IL 60093
    3,214 sqft | $474/sqft | built 2006 | Similar size (3,214 vs 3,288 sqft); Similar age (2006 vs 2003); Similar lot size (8,602 vs 8,556 sqft)
    $1,522,070
  • 847 Cherry St, Winnetka, IL 60093
    3,172 sqft | $560/sqft | built 2006 | Similar size (3,172 vs 3,288 sqft); Similar age (2006 vs 2003); Similar lot size (8,782 vs 8,556 sqft)
    $1,777,850

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: . 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 4.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,905,630−$84,370−4.2%
2025$1,990,000+$592,400+42.4%
2024$1,397,600——
2-year total+$508,030+36.4%