Cook County Value

815 Happ Rd Northfield, IL 60093

6 bed / 5 bath, 5,950 sqft, built 2007, in Northfield. Assessor market value for 2026: $1,760,000.

Cook County account 04134000040000

Assessor market value
$1,760,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
5,950 sqft
$296 per sqft
Year built
2007
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 60093 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 $1,760,000 in 2025 to $1,760,000 in 2026.
  • Assessor market value per square footThe current public record shows about $296 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 60093.
  • Neighborhood value signalAmong 1,572 residential records in the same neighborhood, the average assessor market value is about $309 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.3% on average.

Comparable assessments

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

  • 2227 Woodlawn Rd, Northbrook, IL 60062
    5,944 sqft | $329/sqft | built 2003 | Similar size (5,944 vs 5,950 sqft); Similar age (2003 vs 2007); Similar lot size (20,000 vs 18,204 sqft)
    $1,957,120
  • 2075 Woodlawn Rd, Northbrook, IL 60062
    6,085 sqft | $365/sqft | built 2009 | Similar size (6,085 vs 5,950 sqft); Similar age (2009 vs 2007); Lot 14% larger (20,800 vs 18,204 sqft)
    $2,220,000
  • 2144 Woodlawn Rd, Northbrook, IL 60062
    5,917 sqft | $378/sqft | built 2016 | Similar size (5,917 vs 5,950 sqft); Lot 14% larger (20,800 vs 18,204 sqft); Same quality (Average)
    $2,238,640
  • 2175 Dehne Rd, Northbrook, IL 60062
    5,760 sqft | $367/sqft | built 2005 | Similar size (5,760 vs 5,950 sqft); Similar age (2005 vs 2007); Lot 13% smaller (15,766 vs 18,204 sqft)
    $2,115,010
  • 1963 Pine St Northfield, IL 60093
    5,999 sqft | $375/sqft | built 2015 | Similar size (5,999 vs 5,950 sqft); Lot 16% larger (21,137 vs 18,204 sqft); Same quality (Average)
    $2,250,000

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$1,760,000$00.0%
2025$1,760,000+$540,000+44.3%
2024$1,220,000$00.0%
2023$1,220,000$00.0%
2022$1,220,000−$89,090−6.8%
2021$1,309,090+$1,006,160+332.1%
2020$302,930——
6-year total+$1,457,070+481.0%