Cook County Value

1802 Oak Ave, Northbrook, IL 60062

4 bed / 4 bath, 2,135 sqft, built 2015, in Northfield. Assessor market value for 2026: $910,530.

Cook County account 04103120210000

Assessor market value
$910,530
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,135 sqft
$426 per sqft
Year built
2015
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 12.3% from $1,038,010 in 2025 to $910,530 in 2026.
  • Assessor market value per square footThe current public record shows about $426 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.

  • 2215 Oak Ave, Northbrook, IL 60062
    2,367 sqft | $477/sqft | built 2015 | 11% larger (2,367 vs 2,135 sqft); Built same year (2015); Similar lot size (7,729 vs 7,425 sqft)
    $1,130,000
  • 1802 Maple Ave, Northbrook, IL 60062
    2,286 sqft | $451/sqft | built 2020 | 7% larger (2,286 vs 2,135 sqft); Similar age (2020 vs 2015); Similar lot size (7,425 vs 7,425 sqft)
    $1,030,010
  • 1540 Church St, Northbrook, IL 60062
    2,329 sqft | $481/sqft | built 2022 | 9% larger (2,329 vs 2,135 sqft); Similar lot size (7,425 vs 7,425 sqft); Same quality (Average)
    $1,120,010
  • 1443 Church St, Northbrook, IL 60062
    2,294 sqft | $464/sqft | built 2020 | 7% larger (2,294 vs 2,135 sqft); Similar age (2020 vs 2015); Similar lot size (8,018 vs 7,425 sqft)
    $1,063,980
  • 2207 Oak Ave, Northbrook, IL 60062
    2,415 sqft | $458/sqft | built 2020 | 13% larger (2,415 vs 2,135 sqft); Similar age (2020 vs 2015); Similar lot size (6,750 vs 7,425 sqft)
    $1,106,570

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 12.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$910,530−$127,480−12.3%
2025$1,038,010+$391,440+60.5%
2024$646,570——
2-year total+$263,960+40.8%