Cook County Value

535 Park Ave, Wilmette, IL 60091

5 bed / 4 bath, 3,221 sqft, built 2008, in New Trier. Assessor market value for 2026: $1,780,000.

Cook County account 05341150140000

Assessor market value
$1,780,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,221 sqft
$553 per sqft
Year built
2008
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 stayed about the same, from $1,780,000 in 2025 to $1,780,000 in 2026.
  • Assessor market value per square footThe current public record shows about $553 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.

  • 602 15th St, Wilmette, IL 60091
    3,299 sqft | $546/sqft | built 2003 | Similar size (3,299 vs 3,221 sqft); Similar age (2003 vs 2008); Similar lot size (6,505 vs 6,300 sqft)
    $1,800,000
  • 809 15th St, Wilmette, IL 60091
    3,233 sqft | $464/sqft | built 2004 | Similar size (3,233 vs 3,221 sqft); Similar age (2004 vs 2008); Similar lot size (6,600 vs 6,300 sqft)
    $1,500,000
  • 122 17th St, Wilmette, IL 60091
    3,266 sqft | $597/sqft | built 2014 | Similar size (3,266 vs 3,221 sqft); Similar lot size (6,400 vs 6,300 sqft); Same quality (Average)
    $1,950,000
  • 233 Catalpa Pl, Wilmette, IL 60091
    3,340 sqft | $563/sqft | built 2020 | Similar size (3,340 vs 3,221 sqft); Similar lot size (6,250 vs 6,300 sqft); Same quality (Average)
    $1,881,080
  • 111 16th St, Wilmette, IL 60091
    3,366 sqft | $455/sqft | built 2000 | Similar size (3,366 vs 3,221 sqft); Similar lot size (6,500 vs 6,300 sqft); Same quality (Average)
    $1,532,270

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,780,000$00.0%
2025$1,780,000+$503,560+39.5%
2024$1,276,440——
2-year total+$503,560+39.5%