Cook County Value

518 Elder Ln, Winnetka, IL 60093

6 bed / 7 bath, 4,703 sqft, built 2025, in New Trier Assessor market value for 2026: $4,000,000.

Cook County account 05213170170000

Assessor market value
$4,000,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,703 sqft
$851 per sqft
Year built
2025
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.

  • Assessor market value per square footThe current public record shows about $851 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.

  • 1240 Asbury Ave, Winnetka, IL 60093
    4,729 sqft | $565/sqft | built 2020 | Similar size (4,729 vs 4,703 sqft); Similar age (2020 vs 2025); Similar lot size (12,003 vs 12,210 sqft)
    $2,670,000
  • 1137 Laurel Ave, Winnetka, IL 60093
    4,734 sqft | $564/sqft | built 2017 | Similar size (4,734 vs 4,703 sqft); Similar lot size (11,840 vs 12,210 sqft); Same quality (Average)
    $2,668,220
  • 760 Prospect Ave, Winnetka, IL 60093
    4,770 sqft | $533/sqft | built 2013 | Similar size (4,770 vs 4,703 sqft); Similar lot size (11,250 vs 12,210 sqft); Same quality (Average)
    $2,542,050
  • 1236 Asbury Ave, Winnetka, IL 60093
    4,272 sqft | $665/sqft | built 2019 | 9% smaller (4,272 vs 4,703 sqft); Similar lot size (12,000 vs 12,210 sqft); Same quality (Average)
    $2,840,000
  • 373 Elder Ln, Winnetka, IL 60093
    4,542 sqft | $603/sqft | built 2012 | Similar size (4,542 vs 4,703 sqft); Similar lot size (12,975 vs 12,210 sqft); Same quality (Average)
    $2,738,700

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

Up 365.1% in 2026 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$4,000,000+$3,140,000+365.1%
2024$860,000$00.0%
2023$860,000$00.0%
2022$860,000+$96,120+12.6%
2021$763,880−$60,900−7.4%
2020$824,780——
6-year total+$3,175,220+385.0%