Cook County Value

802 Lake Ave, Wilmette, IL 60091

5 bed / 6 bath, 4,719 sqft, built 2019, in New Trier Assessor market value for 2026: $2,980,010.

Cook County account 05274210180000

Assessor market value
$2,980,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,719 sqft
$631 per sqft
Year built
2019
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 $2,980,010 in 2025 to $2,980,010 in 2026.
  • Assessor market value per square footThe current public record shows about $631 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 809 residential records in the same neighborhood, the average assessor market value is about $540 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.4% on average.

Comparable assessments

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

  • 1229 Chestnut Ave, Wilmette, IL 60091
    4,682 sqft | $667/sqft | built 2020 | Similar size (4,682 vs 4,719 sqft); Similar age (2020 vs 2019); Similar lot size (13,200 vs 12,510 sqft)
    $3,121,150
  • 820 Greenwood Ave, Wilmette, IL 60091
    4,855 sqft | $628/sqft | built 2021 | Similar size (4,855 vs 4,719 sqft); Similar age (2021 vs 2019); Similar lot size (13,485 vs 12,510 sqft)
    $3,047,420
  • 828 Ashland Ave, Wilmette, IL 60091
    4,801 sqft | $594/sqft | built 2007 | Similar size (4,801 vs 4,719 sqft); Similar lot size (12,462 vs 12,510 sqft); Same quality (Average)
    $2,852,570
  • 1117 Michigan Ave, Wilmette, IL 60091
    5,204 sqft | $640/sqft | built 2019 | 10% larger (5,204 vs 4,719 sqft); Built same year (2019); Similar lot size (12,000 vs 12,510 sqft)
    $3,330,000
  • 723 Forest Ave, Wilmette, IL 60091
    4,442 sqft | $652/sqft | built 2021 | 6% smaller (4,442 vs 4,719 sqft); Similar age (2021 vs 2019); Similar lot size (11,400 vs 12,510 sqft)
    $2,897,110

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: . Showing the last prepared sales evidence while recent sales are refreshed. 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$2,980,010$00.0%
2025$2,980,010+$630,000+26.8%
2024$2,350,010$00.0%
2023$2,350,010$00.0%
2022$2,350,010+$581,500+32.9%
2021$1,768,510+$857,470+94.1%
2020$911,040——
6-year total+$2,068,970+227.1%