Cook County Value

821 Oakwood Ave, Wilmette, IL 60091

6 bed / 5 bath, 4,710 sqft, built 2022, in New Trier. Assessor market value for 2026: $3,000,000.

Cook County account 05344010140000

Assessor market value
$3,000,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,710 sqft
$637 per sqft
Year built
2022
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 $3,000,000 in 2025 to $3,000,000 in 2026.
  • Assessor market value per square footThe current public record shows about $637 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.

  • 930 Linden Ave, Wilmette, IL 60091
    4,730 sqft | $496/sqft | built 2015 | Similar size (4,730 vs 4,710 sqft); Similar lot size (10,000 vs 10,024 sqft); Same quality (Average)
    $2,346,130
  • 237 Greenleaf Ave, Wilmette, IL 60091
    4,533 sqft | $485/sqft | built 2020 | Similar size (4,533 vs 4,710 sqft); Similar age (2020 vs 2022); Similar lot size (9,800 vs 10,024 sqft)
    $2,200,000
  • 700 Laurel Ave, Wilmette, IL 60091
    4,167 sqft | $600/sqft | built 2021 | 12% smaller (4,167 vs 4,710 sqft); Similar age (2021 vs 2022); Similar lot size (9,600 vs 10,024 sqft)
    $2,500,000
  • 519 Linden Ave, Wilmette, IL 60091
    4,364 sqft | $636/sqft | built 2024 | 7% smaller (4,364 vs 4,710 sqft); Similar age (2024 vs 2022); Similar lot size (9,120 vs 10,024 sqft)
    $2,774,280
  • 716 Central Ave, Wilmette, IL 60091
    4,460 sqft | $497/sqft | built 2013 | 5% smaller (4,460 vs 4,710 sqft); Similar lot size (10,360 vs 10,024 sqft); Same quality (Average)
    $2,214,810

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

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$3,000,000$00.0%
2025$3,000,000+$890,000+42.2%
2024$2,110,000$00.0%
2023$2,110,000$00.0%
2022$2,110,000+$1,844,850+695.8%
2021$265,150−$401,540−60.2%
2020$666,690——
6-year total+$2,333,310+350.0%