Cook County Value

437 Chestnut St, Winnetka, IL 60093

5 bed / 5 bath, 3,513 sqft, built 2012, in New Trier. Assessor market value for 2026: $2,177,180.

Cook County account 05202220020000

Assessor market value
$2,177,180
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,513 sqft
$620 per sqft
Year built
2012
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 13.9% from $2,528,480 in 2025 to $2,177,180 in 2026.
  • Assessor market value per square footThe current public record shows about $620 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.

  • 1086 Elm St, Winnetka, IL 60093
    3,638 sqft | $597/sqft | built 2012 | Similar size (3,638 vs 3,513 sqft); Built same year (2012); Similar lot size (13,275 vs 14,025 sqft)
    $2,172,220
  • 1096 Elm St, Winnetka, IL 60093
    3,551 sqft | $586/sqft | built 2012 | Similar size (3,551 vs 3,513 sqft); Built same year (2012); Similar lot size (13,275 vs 14,025 sqft)
    $2,080,520
  • 873 Spruce St, Winnetka, IL 60093
    3,637 sqft | $591/sqft | built 2004 | Similar size (3,637 vs 3,513 sqft); Same quality (Average); Same neighborhood
    $2,150,010
  • 1077 Spruce St, Winnetka, IL 60093
    3,470 sqft | $617/sqft | built 2022 | Similar size (3,470 vs 3,513 sqft); Same quality (Average); Same neighborhood
    $2,141,920
  • 893 Ash St, Winnetka, IL 60093
    3,671 sqft | $599/sqft | built 2012 | Similar size (3,671 vs 3,513 sqft); Built same year (2012); Same quality (Average)
    $2,200,010

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 13.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$2,177,180−$351,300−13.9%
2025$2,528,480+$734,420+40.9%
2024$1,794,060——
2-year total+$383,120+21.4%