3500 Cornflower Trl, Northbrook, IL 60062

5 bed / 2 bath, 3,072 sqft, built 1971, in Northfield. Assessor market value for 2026: $758,600.

Cook County account 04173030150000

Assessor market value

$758,600

Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it

Living area

3,072 sqft

$247 per sqft

Year built

1971

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 September 4, 2026. 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 September 27, 2026 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 5.2% from $800,000 in 2025 to $758,600 in 2026.
Assessor market value per square footThe current public record shows about $247 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.

3456 Whirlaway Dr, Northbrook, IL 60062
3,104 sqft | $251/sqft | built 1968 | Similar size (3,104 vs 3,072 sqft); Similar age (1968 vs 1971); Similar lot size (24,785 vs 25,142 sqft)
$780,000
3636 Whirlaway Dr, Northbrook, IL 60062
3,055 sqft | $268/sqft | built 1968 | Similar size (3,055 vs 3,072 sqft); Similar age (1968 vs 1971); Similar lot size (23,500 vs 25,142 sqft)
$820,000
3715 Whirlaway Dr, Northbrook, IL 60062
3,008 sqft | $263/sqft | built 1976 | Similar size (3,008 vs 3,072 sqft); Similar age (1976 vs 1971); Similar lot size (23,003 vs 25,142 sqft)
$790,000
2124 White Oak Dr, Northbrook, IL 60062
3,066 sqft | $264/sqft | built 1972 | Similar size (3,066 vs 3,072 sqft); Similar age (1972 vs 1971); Lot 17% smaller (20,764 vs 25,142 sqft)
$810,000
2289 Post Rd, Northbrook, IL 60062
2,817 sqft | $266/sqft | built 1971 | 8% smaller (2,817 vs 3,072 sqft); Built same year (1971); Similar lot size (26,688 vs 25,142 sqft)
$748,950

Recent comparable sales

Sales selected by similarity to the subject property.

2715 Greenwood Rd, Northbrook, IL 60062
2,943 sqft | $275/sqft | built 1974 | Similar size (2,943 sqft); Similar age (1974); Same beds (5)
$808,000
2705 Cherry Ln, Northbrook, IL 60062
2,870 sqft | $383/sqft | built 1970 | 7% size difference (2,870 sqft); Similar age (1970); Same beds (5)
$1,100,000
3751 Charles Dr, Northbrook, IL 60062
2,650 sqft | $351/sqft | built 1969 | 14% size difference (2,650 sqft); Similar age (1969); Same beds (5)
$930,000
3940 Rutgers Ln, Northbrook, IL 60062
2,600 sqft | $322/sqft | built 1969 | Similar age (1969); Same beds (5)
$837,000

Public appraisal comparison for 2026. Prepared October 16, 2026. Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: October 13, 2026. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Down 5.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax year	Assessor market value	Change	Change %
2026	$758,600	−$41,400	−5.2%
2025	$800,000	+$109,430	+15.8%
2024	$690,570	—	—
2-year total		+$68,030	+9.9%