Cook County Value

2915 Keystone Rd, Northbrook, IL 60062

4 bed / 4 bath, 3,701 sqft, built 2014, in Northfield Assessor market value for 2026: $1,298,140.

Cook County account 04172020090000

Assessor market value
$1,298,140
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,701 sqft
$351 per sqft
Year built
2014
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 3.4% from $1,343,490 in 2025 to $1,298,140 in 2026.
  • Assessor market value per square footThe current public record shows about $351 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 2,922 residential records in the same neighborhood, the average assessor market value is about $298 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.8% on average.

Comparable assessments

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 3020 Koepke Rd, Northbrook, IL 60062
    3,789 sqft | $352/sqft | built 2013 | Similar size (3,789 vs 3,701 sqft); Similar age (2013 vs 2014); Similar lot size (17,820 vs 18,000 sqft)
    $1,333,900
  • 2567 Walters Ave, Northbrook, IL 60062
    3,722 sqft | $374/sqft | built 2015 | Similar size (3,722 vs 3,701 sqft); Similar age (2015 vs 2014); Similar lot size (18,731 vs 18,000 sqft)
    $1,391,610
  • 2980 Koepke Rd, Northbrook, IL 60062
    3,967 sqft | $406/sqft | built 2016 | 7% larger (3,967 vs 3,701 sqft); Similar age (2016 vs 2014); Similar lot size (17,820 vs 18,000 sqft)
    $1,610,000
  • 3030 Koepke Rd, Northbrook, IL 60062
    3,400 sqft | $353/sqft | built 2007 | 8% smaller (3,400 vs 3,701 sqft); Similar lot size (17,820 vs 18,000 sqft); Same quality (Average)
    $1,200,000
  • 1320 Brookside Ln, Northbrook, IL 60062
    3,895 sqft | $437/sqft | built 2023 | 5% larger (3,895 vs 3,701 sqft); Similar lot size (16,715 vs 18,000 sqft); Same quality (Average)
    $1,703,620

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

Down 3.4% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,298,140−$45,350−3.4%
2025$1,343,490+$442,250+49.1%
2024$901,240——
2-year total+$396,900+44.0%