Cook County Value

3477 Cornflower Trl, Northbrook, IL 60062

4 bed / 2 bath, 3,350 sqft, built 2002, in Northfield. Assessor market value for 2026: $850,000.

Cook County account 04173080040000

Assessor market value
$850,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,350 sqft
$254 per sqft
Year built
2002
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 23.4% from $1,110,000 in 2025 to $850,000 in 2026.
  • Assessor market value per square footThe current public record shows about $254 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

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

  • 4301 Westview Dr Glenview
    3,490 sqft | $261/sqft | built 1990 | Similar size (3,490 vs 3,350 sqft); Similar lot size (14,560 vs 14,840 sqft); Same quality (Average)
    $910,000
  • 4321 Hammersmith Ln, Glenview, IL 60026
    3,408 sqft | $264/sqft | built 1991 | Similar size (3,408 vs 3,350 sqft); Similar lot size (13,430 vs 14,840 sqft); Same quality (Average)
    $901,040
  • 3501 Cornflower Trl, Northbrook, IL 60062
    3,839 sqft | $236/sqft | built 1997 | 15% larger (3,839 vs 3,350 sqft); Similar age (1997 vs 2002); Similar lot size (14,840 vs 14,840 sqft)
    $907,110
  • 4404 Pynsky St, Glenview, IL 60026
    3,227 sqft | $279/sqft | built 2000 | Similar size (3,227 vs 3,350 sqft); Similar age (2000 vs 2002); Same quality (Average)
    $899,680
  • 3432 Whirlaway Dr, Northbrook, IL 60062
    3,443 sqft | $308/sqft | built 2000 | Similar size (3,443 vs 3,350 sqft); Similar age (2000 vs 2002); Lot 18% smaller (12,145 vs 14,840 sqft)
    $1,060,000

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: . 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

Down 23.4% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$850,000−$260,000−23.4%
2025$1,110,000+$323,900+41.2%
2024$786,100——
2-year total+$63,900+8.1%