Cook County Value

2100 Thornwood Ave, Wilmette, IL 60091

4 bed / 2 bath, 2,222 sqft, built 1952, in New Trier. Assessor market value for 2026: $1,110,000.

Cook County account 05283030510000

Assessor market value
$1,110,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,222 sqft
$500 per sqft
Year built
1952
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 $1,110,000 in 2025 to $1,110,000 in 2026.
  • Assessor market value per square footThe current public record shows about $500 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 1,584 residential records in the same neighborhood, the average assessor market value is about $440 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.9% on average.

Comparable assessments

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

  • 2544 Thornwood Ave, Wilmette, IL 60091
    2,221 sqft | $450/sqft | built 1951 | Similar size (2,221 vs 2,222 sqft); Similar age (1951 vs 1952); Lot 13% smaller (9,975 vs 11,412 sqft)
    $1,000,000
  • 35 Brier St, Winnetka, IL 60093
    2,167 sqft | $541/sqft | built 1948 | Similar size (2,167 vs 2,222 sqft); Similar age (1948 vs 1952); Similar lot size (12,150 vs 11,412 sqft)
    $1,171,740
  • 1234 Cleveland St, Wilmette, IL 60091
    2,287 sqft | $411/sqft | built 1958 | Similar size (2,287 vs 2,222 sqft); Similar lot size (10,956 vs 11,412 sqft); Same quality (Average)
    $940,000
  • 2100 Beechwood Ave, Wilmette, IL 60091
    2,152 sqft | $525/sqft | built 1942 | Similar size (2,152 vs 2,222 sqft); Similar lot size (11,122 vs 11,412 sqft); Same quality (Average)
    $1,129,540
  • 306 Sterling Rd Kenilworth, IL 60043
    2,346 sqft | $493/sqft | built 1949 | 6% larger (2,346 vs 2,222 sqft); Similar age (1949 vs 1952); Similar lot size (12,225 vs 11,412 sqft)
    $1,156,000

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

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$1,110,000$00.0%
2025$1,110,000+$330,000+42.3%
2024$780,000$00.0%
2023$780,000$00.0%
2022$780,000+$94,230+13.7%
2021$685,770+$100.0%
2020$685,760——
6-year total+$424,240+61.9%