Cook County Value

1800 Walnut Ave, Wilmette, IL 60091

4 bed / 3 bath, 2,303 sqft, built 1932, in New Trier Assessor market value for 2026: $913,980.

Cook County account 05284120180000

Assessor market value
$913,980
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,303 sqft
$397 per sqft
Year built
1932
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 13.5% from $1,056,190 in 2025 to $913,980 in 2026.
  • Assessor market value per square footThe current public record shows about $397 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

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 601 Ridge Rd Kenilworth, IL 60043
    2,280 sqft | $500/sqft | built 1930 | Similar size (2,280 vs 2,303 sqft); Similar age (1930 vs 1932); Similar lot size (7,089 vs 7,000 sqft)
    $1,140,000
  • 729 MacLean Ave Kenilworth, IL 60043
    2,361 sqft | $534/sqft | built 1930 | Similar size (2,361 vs 2,303 sqft); Similar age (1930 vs 1932); Similar lot size (7,050 vs 7,000 sqft)
    $1,260,000
  • 715 Cummings Ave Kenilworth, IL 60043
    2,225 sqft | $525/sqft | built 1930 | Similar size (2,225 vs 2,303 sqft); Similar age (1930 vs 1932); Similar lot size (7,050 vs 7,000 sqft)
    $1,167,440
  • 90 High St, Winnetka, IL 60093
    2,317 sqft | $488/sqft | built 1930 | Similar size (2,317 vs 2,303 sqft); Similar age (1930 vs 1932); Similar lot size (7,500 vs 7,000 sqft)
    $1,130,000
  • 2125 Beechwood Ave, Wilmette, IL 60091
    2,259 sqft | $495/sqft | built 1936 | Similar size (2,259 vs 2,303 sqft); Similar age (1936 vs 1932); Similar lot size (6,700 vs 7,000 sqft)
    $1,118,450

Recent comparable sales

Sales selected by similarity to the subject property.

  • 2323 Lake Ave, Wilmette, IL 60091
    2,264 sqft | $448/sqft | built 1931 | Similar size (2,264 sqft); Similar age (1931); Same beds (4)
    $1,015,000
  • 2125 Beechwood Ave, Wilmette, IL 60091
    2,259 sqft | $764/sqft | built 1936 | Similar size (2,259 sqft); Moderate age difference (4 years newer); Same beds (4)
    $1,725,000
  • 111 Park Ave, Wilmette, IL 60091
    2,672 sqft | $603/sqft | built 1923 | Moderate age difference (9 years older); Same beds (4)
    $1,610,000
  • 1526 Washington Ave, Wilmette, IL 60091
    2,642 sqft | $511/sqft | built 1917 | 15% size difference (2,642 sqft); Within 1 bedroom (3 vs 4)
    $1,350,000

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 13.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$913,980−$142,210−13.5%
2025$1,056,190+$345,800+48.7%
2024$710,390$00.0%
2023$710,390−$49,610−6.5%
2022$760,000+$48,960+6.9%
2021$711,040+$100.0%
2020$711,030——
6-year total+$202,950+28.5%