Cook County Value

3420 Whirlaway Dr, Northbrook, IL 60062

4 bed / 2 bath, 3,107 sqft, built 2000, in Northfield. Assessor market value for 2026: $975,370.

Cook County account 04173090060000

Assessor market value
$975,370
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,107 sqft
$314 per sqft
Year built
2000
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 60062 and Northfield assessment pages.

Local guide: Northfield Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Northfield, appeals to the Assessor closed . Board of Review dates for Northfield have not been published yet.

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 3.4% from $1,010,000 in 2025 to $975,370 in 2026.
  • Assessor market value per square footThe current public record shows about $314 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Northfield neighborhood and ZIP 60062.
  • Neighborhood value signalAmong 530 residential records in the same neighborhood, the average assessor market value is about $283 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.3% on average.

Comparable assessments

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

  • 4406 Pynsky St, Glenview, IL 60026
    3,160 sqft | $258/sqft | built 2000 | Similar size (3,160 vs 3,107 sqft); Built same year (2000); Similar lot size (10,951 vs 11,322 sqft)
    $816,180
  • 4404 Pynsky St, Glenview, IL 60026
    3,227 sqft | $279/sqft | built 2000 | Similar size (3,227 vs 3,107 sqft); Built same year (2000); Similar lot size (11,509 vs 11,322 sqft)
    $899,680
  • 3428 Whirlaway Dr, Northbrook, IL 60062
    3,117 sqft | $292/sqft | built 2000 | Similar size (3,117 vs 3,107 sqft); Built same year (2000); Similar lot size (12,070 vs 11,322 sqft)
    $910,060
  • 1908 Franklin Dr, Glenview, IL 60026
    3,204 sqft | $259/sqft | built 1989 | Similar size (3,204 vs 3,107 sqft); Similar lot size (11,690 vs 11,322 sqft); Same quality (Average)
    $830,000
  • 2116 Franklin Dr, Glenview, IL 60026
    3,176 sqft | $222/sqft | built 1989 | Similar size (3,176 vs 3,107 sqft); Similar lot size (12,171 vs 11,322 sqft); Same quality (Average)
    $705,030

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 3.4% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$975,370−$34,630−3.4%
2025$1,010,000+$338,510+50.4%
2024$671,490——
2-year total+$303,880+45.3%