Cook County Value

400 Park Ave, Wilmette, IL 60091

5 bed / 4 bath, 4,218 sqft, built 2020, in New Trier Assessor market value for 2026: $2,202,230.

Cook County account 05341200070000

Assessor market value
$2,202,230
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,218 sqft
$522 per sqft
Year built
2020
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 9.3% from $2,428,180 in 2025 to $2,202,230 in 2026.
  • Assessor market value per square footThe current public record shows about $522 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 1,671 residential records in the same neighborhood, the average assessor market value is about $458 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.4% on average.

Comparable assessments

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

  • 2244 Schiller Ave, Wilmette, IL 60091
    4,348 sqft | $446/sqft | built 2015 | Similar size (4,348 vs 4,218 sqft); Similar age (2015 vs 2020); Similar lot size (11,506 vs 11,733 sqft)
    $1,940,010
  • 113 Woodbine Ave, Wilmette, IL 60091
    4,188 sqft | $673/sqft | built 2021 | Similar size (4,188 vs 4,218 sqft); Similar age (2021 vs 2020); Similar lot size (11,446 vs 11,733 sqft)
    $2,820,010
  • 2131 Schiller Ave, Wilmette, IL 60091
    4,063 sqft | $496/sqft | built 2024 | Similar size (4,063 vs 4,218 sqft); Similar age (2024 vs 2020); Similar lot size (11,220 vs 11,733 sqft)
    $2,013,970
  • 117 Woodbine Ave, Wilmette, IL 60091
    4,406 sqft | $687/sqft | built 2025 | Similar size (4,406 vs 4,218 sqft); Similar age (2025 vs 2020); Similar lot size (11,459 vs 11,733 sqft)
    $3,029,060
  • 206 10th St, Wilmette, IL 60091
    4,222 sqft | $491/sqft | built 2009 | Similar size (4,222 vs 4,218 sqft); Similar lot size (11,305 vs 11,733 sqft); Same quality (Average)
    $2,074,790

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 9.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$2,202,230−$225,950−9.3%
2025$2,428,180+$636,870+35.6%
2024$1,791,310$00.0%
2023$1,791,310−$111,790−5.9%
2022$1,903,100+$462,090+32.1%
2021$1,441,010−$2,510−0.2%
2020$1,443,520——
6-year total+$758,710+52.6%