Cook County Value

620 Happ Rd Northfield, IL 60093

4 bed / 4 bath, 3,467 sqft, built 2023, in Northfield. Assessor market value for 2026: $1,522,610.

Cook County account 04242000680000

Assessor market value
$1,522,610
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,467 sqft
$439 per sqft
Year built
2023

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 decreased 9.9% from $1,690,000 in 2025 to $1,522,610 in 2026.
  • Assessor market value per square footThe current public record shows about $439 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 602 residential records in the same neighborhood, the average assessor market value is about $313 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.9% on average.

Comparable assessments

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

  • 319 Ingram St Northfield, IL 60093
    3,621 sqft | $483/sqft | built 2023 | Similar size (3,621 vs 3,467 sqft); Built same year (2023); Lot 13% larger (13,200 vs 11,666 sqft)
    $1,750,000
  • 340 Thackeray Ln Northfield, IL 60093
    3,219 sqft | $793/sqft | built 2024 | 7% smaller (3,219 vs 3,467 sqft); Similar age (2024 vs 2023); Lot 13% larger (13,200 vs 11,666 sqft)
    $2,552,720
  • 350 Wagner Rd Northfield, IL 60093
    3,187 sqft | $427/sqft | built 2022 | 8% smaller (3,187 vs 3,467 sqft); Similar age (2022 vs 2023); Lot 17% smaller (9,675 vs 11,666 sqft)
    $1,360,010
  • 361 Dickens Rd Northfield, IL 60093
    2,797 sqft | $449/sqft | built 2020 | Similar age (2020 vs 2023); Similar lot size (11,550 vs 11,666 sqft); Same neighborhood
    $1,254,850
  • 257 Jeffery Ln Northfield, IL 60093
    3,311 sqft | $375/sqft | built 2010 | Similar size (3,311 vs 3,467 sqft); Lot 15% smaller (9,900 vs 11,666 sqft); Same neighborhood
    $1,240,000

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

Down 9.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,522,610−$167,390−9.9%
2025$1,690,000−$135,000−7.4%
2024$1,825,000+$1,405,000+334.5%
2022$420,000+$150,500+55.8%
2021$269,500+$200.0%
2020$269,480——
6-year total+$1,253,130+465.0%