Cook County Value

2518 Thornwood Ave, Wilmette, IL 60091

5 bed / 3 bath, 3,009 sqft, built 1972, in New Trier. Assessor market value for 2026: $743,590.

Cook County account 05294030340000

Assessor market value
$743,590
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,009 sqft
$247 per sqft
Year built
1972
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 decreased 5.3% from $785,500 in 2025 to $743,590 in 2026.
  • Assessor market value per square footThe current public record shows about $247 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.

  • 2014 Elmwood Ave, Wilmette, IL 60091
    2,882 sqft | $420/sqft | built 1975 | Similar size (2,882 vs 3,009 sqft); Similar age (1975 vs 1972); Similar lot size (6,600 vs 6,650 sqft)
    $1,210,000
  • 2140 Lake Ave, Wilmette, IL 60091
    2,759 sqft | $272/sqft | built 1976 | 8% smaller (2,759 vs 3,009 sqft); Similar age (1976 vs 1972); Similar lot size (6,500 vs 6,650 sqft)
    $750,000
  • 512 Brier St Kenilworth, IL 60043
    3,042 sqft | $481/sqft | built 1969 | Similar size (3,042 vs 3,009 sqft); Similar age (1969 vs 1972); Same quality (Average)
    $1,462,310
  • 2327 Greenwood Ave, Wilmette, IL 60091
    2,725 sqft | $407/sqft | built 1967 | 9% smaller (2,725 vs 3,009 sqft); Similar age (1967 vs 1972); Similar lot size (7,200 vs 6,650 sqft)
    $1,110,000
  • 1212 Grant St, Wilmette, IL 60091
    3,108 sqft | $376/sqft | built 1958 | Similar size (3,108 vs 3,009 sqft); Lot 11% larger (7,414 vs 6,650 sqft); Same quality (Average)
    $1,170,000

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: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Down 5.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$743,590−$41,910−5.3%
2025$785,500+$277,480+54.6%
2024$508,020——
2-year total+$235,570+46.4%