Cook County Value

1437 Forest Ave, Wilmette, IL 60091

4 bed / 2 bath, 1,835 sqft, built 1933, in New Trier. Assessor market value for 2026: $857,510.

Cook County account 05284250020000

Assessor market value
$857,510
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,835 sqft
$467 per sqft
Year built
1933
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 14.2% from $1,000,000 in 2025 to $857,510 in 2026.
  • Assessor market value per square footThe current public record shows about $467 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.

  • 1708 Lake Ave, Wilmette, IL 60091
    1,845 sqft | $461/sqft | built 1933 | Similar size (1,845 vs 1,835 sqft); Built same year (1933); Lot 12% smaller (8,150 vs 9,250 sqft)
    $850,000
  • 2200 Chestnut Ave, Wilmette, IL 60091
    1,835 sqft | $561/sqft | built 1941 | Similar size (1,835 vs 1,835 sqft); Similar lot size (8,750 vs 9,250 sqft); Same quality (Average)
    $1,030,000
  • 554 Meadow Rd, Winnetka, IL 60093
    1,842 sqft | $516/sqft | built 1927 | Similar size (1,842 vs 1,835 sqft); Similar lot size (9,550 vs 9,250 sqft); Same quality (Average)
    $949,750
  • 2116 Chestnut Ave, Wilmette, IL 60091
    1,888 sqft | $524/sqft | built 1930 | Similar size (1,888 vs 1,835 sqft); Similar age (1930 vs 1933); Similar lot size (8,575 vs 9,250 sqft)
    $988,440
  • 1535 Forest Ave, Wilmette, IL 60091
    1,810 sqft | $624/sqft | built 1931 | Similar size (1,810 vs 1,835 sqft); Similar age (1931 vs 1933); Lot 12% smaller (8,100 vs 9,250 sqft)
    $1,129,990

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 14.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$857,510−$142,490−14.2%
2025$1,000,000+$282,320+39.3%
2024$717,680−$31,380−4.2%
2023$749,060−$30,940−4.0%
2022$780,000+$163,230+26.5%
2021$616,770$00.0%
2020$616,770——
6-year total+$240,740+39.0%