Cook County Value

3636 Oak Ave, Northbrook, IL 60062

5 bed / 5 bath, 6,274 sqft, built 2009, in Northfield. Assessor market value for 2026: $1,819,380.

Cook County account 04074050260000

Assessor market value
$1,819,380
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
6,274 sqft
$290 per sqft
Year built
2009
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 4.7% from $1,910,000 in 2025 to $1,819,380 in 2026.
  • Assessor market value per square footThe current public record shows about $290 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 422 residential records in the same neighborhood, the average assessor market value is about $304 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +4.6% on average.

Comparable assessments

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

  • 3754 Oak Ave, Northbrook, IL 60062
    6,018 sqft | $287/sqft | built 2008 | Similar size (6,018 vs 6,274 sqft); Similar age (2008 vs 2009); Similar lot size (20,200 vs 20,200 sqft)
    $1,726,490
  • 120 Constance Ln, Northbrook, IL 60062
    6,034 sqft | $267/sqft | built 2006 | Similar size (6,034 vs 6,274 sqft); Similar age (2006 vs 2009); Similar lot size (20,200 vs 20,200 sqft)
    $1,611,100
  • 3856 Oak Ave, Northbrook, IL 60062
    6,024 sqft | $250/sqft | built 2006 | Similar size (6,024 vs 6,274 sqft); Similar age (2006 vs 2009); Similar lot size (20,200 vs 20,200 sqft)
    $1,503,020
  • 3861 Maple Ave, Northbrook, IL 60062
    6,326 sqft | $278/sqft | built 2021 | Similar size (6,326 vs 6,274 sqft); Similar lot size (20,200 vs 20,200 sqft); Same quality (Average)
    $1,756,320
  • 3770 Maple Ave, Northbrook, IL 60062
    6,093 sqft | $246/sqft | built 2006 | Similar size (6,093 vs 6,274 sqft); Similar age (2006 vs 2009); Similar lot size (20,200 vs 20,200 sqft)
    $1,500,000

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 4.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,819,380−$90,620−4.7%
2025$1,910,000+$542,350+39.7%
2024$1,367,650$00.0%
2023$1,367,650$00.0%
2022$1,367,650+$354,730+35.0%
2021$1,012,920−$39,920−3.8%
2020$1,052,840——
6-year total+$766,540+72.8%