Cook County Value

2303 Oak Ave, Northbrook, IL 60062

4 bed / 2 bath, 3,436 sqft, built 1995, in Northfield. Assessor market value for 2026: $1,200,000.

Cook County account 04094130230000

Assessor market value
$1,200,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,436 sqft
$349 per sqft
Year built
1995
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 stayed about the same, from $1,200,000 in 2025 to $1,200,000 in 2026.
  • Assessor market value per square footThe current public record shows about $349 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 2,200 residential records in the same neighborhood, the average assessor market value is about $346 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.0% on average.

Comparable assessments

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

  • 2341 Dewes St, Glenview, IL 60025
    3,440 sqft | $363/sqft | built 2000 | Similar size (3,440 vs 3,436 sqft); Similar age (2000 vs 1995); Similar lot size (11,160 vs 11,171 sqft)
    $1,250,000
  • 2303 Illinois Rd, Northbrook, IL 60062
    3,513 sqft | $387/sqft | built 2004 | Similar size (3,513 vs 3,436 sqft); Similar lot size (11,173 vs 11,171 sqft); Same quality (Average)
    $1,360,000
  • 2375 Larkdale Dr, Glenview, IL 60025
    3,416 sqft | $383/sqft | built 2001 | Similar size (3,416 vs 3,436 sqft); Similar lot size (10,493 vs 11,171 sqft); Same quality (Average)
    $1,310,000
  • 814 Rolling Pass, Glenview, IL 60025
    3,308 sqft | $339/sqft | built 2000 | Similar size (3,308 vs 3,436 sqft); Similar age (2000 vs 1995); Similar lot size (11,421 vs 11,171 sqft)
    $1,120,000
  • 936 Burnham Ct, Glenview, IL 60025
    3,550 sqft | $248/sqft | built 1986 | Similar size (3,550 vs 3,436 sqft); Similar lot size (11,160 vs 11,171 sqft); Same quality (Average)
    $880,000

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

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,200,000$00.0%
2025$1,200,000+$300,000+33.3%
2024$900,000——
2-year total+$300,000+33.3%