Cook County Value

329 Washington Ave, Wilmette, IL 60091

4 bed / 1 bath, 1,942 sqft, built 1924, in New Trier. Assessor market value for 2026: $932,190.

Cook County account 05351030050000

Assessor market value
$932,190
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,942 sqft
$480 per sqft
Year built
1924
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 11.5% from $1,053,850 in 2025 to $932,190 in 2026.
  • Assessor market value per square footThe current public record shows about $480 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 807 residential records in the same neighborhood, the average assessor market value is about $481 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.6% on average.

Comparable assessments

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

  • 140 Maple Ave, Wilmette, IL 60091
    1,918 sqft | $448/sqft | built 1920 | Similar size (1,918 vs 1,942 sqft); Similar age (1920 vs 1924); Similar lot size (9,000 vs 8,910 sqft)
    $860,000
  • 234 Greenleaf Ave, Wilmette, IL 60091
    1,937 sqft | $487/sqft | built 1921 | Similar size (1,937 vs 1,942 sqft); Similar age (1921 vs 1924); Similar lot size (9,200 vs 8,910 sqft)
    $943,250
  • 228 Maple Ave, Wilmette, IL 60091
    1,974 sqft | $496/sqft | built 1927 | Similar size (1,974 vs 1,942 sqft); Similar age (1927 vs 1924); Similar lot size (9,000 vs 8,910 sqft)
    $980,000
  • 526 Greenleaf Ave, Wilmette, IL 60091
    1,900 sqft | $647/sqft | built 1916 | Similar size (1,900 vs 1,942 sqft); Similar lot size (9,200 vs 8,910 sqft); Same quality (Average)
    $1,230,000
  • 343 Washington Ave, Wilmette, IL 60091
    1,928 sqft | $664/sqft | built 1919 | Similar size (1,928 vs 1,942 sqft); Similar age (1919 vs 1924); Similar lot size (8,250 vs 8,910 sqft)
    $1,280,010

Recent comparable sales

Sales selected by similarity to the subject property.

  • 2323 Lake Ave, Wilmette, IL 60091
    2,264 sqft | $448/sqft | built 1931 | Moderate age difference (7 years newer); Same beds (4)
    $1,015,000
  • 526 Greenleaf Ave, Wilmette, IL 60091
    1,900 sqft | $895/sqft | built 1916 | Similar size (1,900 sqft); Moderate age difference (8 years older); Same beds (4)
    $1,700,000

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 11.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$932,190−$121,660−11.5%
2025$1,053,850+$323,840+44.4%
2024$730,010$00.0%
2023$730,010$00.0%
2022$730,010+$98,540+15.6%
2021$631,470$00.0%
2020$631,470——
6-year total+$300,720+47.6%