Cook County Value

100 Dupee Pl, Wilmette, IL 60091

4 bed / 2 bath, 2,214 sqft, built 1926, in New Trier. Assessor market value for 2026: $930,000.

Cook County account 05353050100000

Assessor market value
$930,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,214 sqft
$420 per sqft
Year built
1926
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 60091 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 $930,000 in 2025 to $930,000 in 2026.
  • Assessor market value per square footThe current public record shows about $420 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 60091.
  • Neighborhood value signalAmong 1,671 residential records in the same neighborhood, the average assessor market value is about $458 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.4% on average.

Comparable assessments

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

  • 117 3rd St, Wilmette, IL 60091
    2,210 sqft | $466/sqft | built 1924 | Similar size (2,210 vs 2,214 sqft); Similar age (1924 vs 1926); Similar lot size (5,480 vs 5,480 sqft)
    $1,030,000
  • 110 Garrison Ave, Wilmette, IL 60091
    2,225 sqft | $376/sqft | built 1927 | Similar size (2,225 vs 2,214 sqft); Similar age (1927 vs 1926); Similar lot size (5,200 vs 5,480 sqft)
    $837,390
  • 108 3rd St, Wilmette, IL 60091
    2,220 sqft | $430/sqft | built 1926 | Similar size (2,220 vs 2,214 sqft); Built same year (1926); Similar lot size (5,480 vs 5,480 sqft)
    $954,660
  • 120 Dupee Pl, Wilmette, IL 60091
    2,223 sqft | $441/sqft | built 1921 | Similar size (2,223 vs 2,214 sqft); Similar age (1921 vs 1926); Similar lot size (5,480 vs 5,480 sqft)
    $980,000
  • 111 Garrison Ave, Wilmette, IL 60091
    2,251 sqft | $422/sqft | built 1929 | Similar size (2,251 vs 2,214 sqft); Similar age (1929 vs 1926); Similar lot size (5,200 vs 5,480 sqft)
    $949,530

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

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$930,000$00.0%
2025$930,000+$239,850+34.8%
2024$690,150$00.0%
2023$690,150−$34,200−4.7%
2022$724,350+$234,920+48.0%
2021$489,430$00.0%
2020$489,430——
6-year total+$440,570+90.0%