Cook County Value

2020 Birchwood Ave, Wilmette, IL 60091

4 bed / 3 bath, 3,382 sqft, built 1996, in New Trier. Assessor market value for 2026: $1,321,510.

Cook County account 05331050110000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$1,321,510
Similar homes$1,556,497
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$1,321,510
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,382 sqft
$391 per sqft
Year built
1996
Average quality

What we found

Similar homes' assessments

Weak

0 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $460.23/sqft, which supports a value of $1,556,497.

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 10.1% from $1,470,010 in 2025 to $1,321,510 in 2026.
  • Assessor market value per square footThe current public record shows about $391 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

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

  • 2004 Birchwood Ave, Wilmette, IL 60091
    3,254 sqft | $418/sqft | built 1994 | Similar size (3,254 vs 3,382 sqft); Similar age (1994 vs 1996); Similar lot size (8,850 vs 8,850 sqft)
    $1,360,010
  • 1520 Gregory Ave, Wilmette, IL 60091
    3,375 sqft | $460/sqft | built 1994 | Similar size (3,375 vs 3,382 sqft); Similar age (1994 vs 1996); Similar lot size (9,100 vs 8,850 sqft)
    $1,553,280
  • 1415 Gregory Ave, Wilmette, IL 60091
    3,245 sqft | $456/sqft | built 1993 | Similar size (3,245 vs 3,382 sqft); Similar age (1993 vs 1996); Similar lot size (8,750 vs 8,850 sqft)
    $1,479,560
  • 1921 Schiller Ave, Wilmette, IL 60091
    3,525 sqft | $430/sqft | built 1997 | Similar size (3,525 vs 3,382 sqft); Similar age (1997 vs 1996); Similar lot size (8,850 vs 8,850 sqft)
    $1,517,150
  • 1105 Greenleaf Ave, Wilmette, IL 60091
    3,380 sqft | $473/sqft | built 1997 | Similar size (3,380 vs 3,382 sqft); Similar age (1997 vs 1996); Similar lot size (8,260 vs 8,850 sqft)
    $1,600,000

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 10.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,321,510−$148,500−10.1%
2025$1,470,010+$425,430+40.7%
2024$1,044,580——
2-year total+$276,930+26.5%