Cook County Value

6421 27th St, Berwyn, IL 60402

3 bed / 1 bath, 1,893 sqft, built 1999, in Berwyn. Assessor market value for 2026: $380,010.

Cook County account 16304050690000

Assessor market value
$380,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,893 sqft
$201 per sqft
Year built
1999
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 60402 and Berwyn assessment pages.

Local guide: Berwyn Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Berwyn 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 increased 18.7% from $320,010 in 2025 to $380,010 in 2026.
  • Assessor market value per square footThe current public record shows about $201 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Berwyn neighborhood and ZIP 60402.
  • Neighborhood value signalAmong 2,031 residential records in the same neighborhood, the average assessor market value is about $207 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +16.0% on average.

Comparable assessments

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

  • 6419 27th St, Berwyn, IL 60402
    1,876 sqft | $203/sqft | built 1996 | Similar size (1,876 vs 1,893 sqft); Similar age (1996 vs 1999); Similar lot size (3,500 vs 3,500 sqft)
    $380,010
  • 6417 27th St, Berwyn, IL 60402
    1,859 sqft | $204/sqft | built 1999 | Similar size (1,859 vs 1,893 sqft); Built same year (1999); Similar lot size (3,499 vs 3,500 sqft)
    $380,000
  • 6511 28th Pl, Berwyn, IL 60402
    2,163 sqft | $176/sqft | built 2005 | 14% larger (2,163 vs 1,893 sqft); Similar lot size (3,380 vs 3,500 sqft); Same quality (Average)
    $380,010
  • 6509 28th Pl, Berwyn, IL 60402
    2,163 sqft | $176/sqft | built 2006 | 14% larger (2,163 vs 1,893 sqft); Similar lot size (3,347 vs 3,500 sqft); Same quality (Average)
    $380,000
  • 2826 Harvey Ave, Berwyn, IL 60402
    1,490 sqft | $235/sqft | built 2005 | Similar lot size (3,780 vs 3,500 sqft); Same quality (Average); Same neighborhood
    $350,010

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

Up 18.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$380,010+$60,000+18.7%
2025$320,010$00.0%
2024$320,010$00.0%
2023$320,010+$111,110+53.2%
2022$208,900$00.0%
2021$208,900+$200.0%
2020$208,880——
6-year total+$171,130+81.9%