Cook County Value

3511 Walnut Ave, Wilmette, IL 60091

3 bed / 1 bath, 1,791 sqft, built 1942, in New Trier. Assessor market value for 2026: $549,040.

Cook County account 05303130080000

Assessor market value
$549,040
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,791 sqft
$307 per sqft
Year built
1942
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 4.5% from $575,000 in 2025 to $549,040 in 2026.
  • Assessor market value per square footThe current public record shows about $307 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 1,980 residential records in the same neighborhood, the average assessor market value is about $334 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.5% on average.

Comparable assessments

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

  • 308 Latrobe Ave Northfield, IL 60093
    1,753 sqft | $308/sqft | built 1943 | Similar size (1,753 vs 1,791 sqft); Similar age (1943 vs 1942); Similar lot size (7,931 vs 7,920 sqft)
    $540,000
  • 3507 Forest Ave, Wilmette, IL 60091
    1,777 sqft | $349/sqft | built 1939 | Similar size (1,777 vs 1,791 sqft); Similar age (1939 vs 1942); Similar lot size (7,740 vs 7,920 sqft)
    $620,000
  • 3506 Forest Ave, Wilmette, IL 60091
    1,820 sqft | $324/sqft | built 1937 | Similar size (1,820 vs 1,791 sqft); Similar age (1937 vs 1942); Similar lot size (7,920 vs 7,920 sqft)
    $590,000
  • 308 Lagoon Dr Northfield, IL 60093
    1,755 sqft | $308/sqft | built 1938 | Similar size (1,755 vs 1,791 sqft); Similar age (1938 vs 1942); Similar lot size (7,654 vs 7,920 sqft)
    $540,000
  • 944 Glenwood Rd, Glenview, IL 60025
    1,784 sqft | $381/sqft | built 1946 | Similar size (1,784 vs 1,791 sqft); Similar age (1946 vs 1942); Similar lot size (8,228 vs 7,920 sqft)
    $680,000

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 4.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$549,040−$25,960−4.5%
2025$575,000+$192,350+50.3%
2024$382,650$00.0%
2023$382,650−$37,350−8.9%
2022$420,000+$84,870+25.3%
2021$335,130+$100.0%
2020$335,120——
6-year total+$213,920+63.8%