Cook County Value

275 Avon Ave Northfield, IL 60093

3 bed / 2 bath, 1,310 sqft, built 1959, in Northfield. Assessor market value for 2026: $446,520.

Cook County account 04244140030000

Assessor market value
$446,520
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,310 sqft
$341 per sqft
Year built
1959
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 decreased 8.9% from $490,000 in 2025 to $446,520 in 2026.
  • Assessor market value per square footThe current public record shows about $341 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

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

  • 260 Avon Ave Northfield, IL 60093
    1,346 sqft | $355/sqft | built 1961 | Similar size (1,346 vs 1,310 sqft); Similar age (1961 vs 1959); Similar lot size (9,000 vs 9,000 sqft)
    $478,360
  • 276 Riverside Dr Northfield, IL 60093
    1,314 sqft | $346/sqft | built 1959 | Similar size (1,314 vs 1,310 sqft); Built same year (1959); Similar lot size (8,447 vs 9,000 sqft)
    $454,550
  • 518 Edens Ln Northfield, IL 60093
    1,265 sqft | $379/sqft | built 1956 | Similar size (1,265 vs 1,310 sqft); Similar age (1956 vs 1959); Similar lot size (9,336 vs 9,000 sqft)
    $480,000
  • 288 Churchill St Northfield, IL 60093
    1,258 sqft | $350/sqft | built 1954 | Similar size (1,258 vs 1,310 sqft); Similar age (1954 vs 1959); Similar lot size (9,000 vs 9,000 sqft)
    $440,000
  • 287 Eaton St Northfield, IL 60093
    1,211 sqft | $350/sqft | built 1956 | 8% smaller (1,211 vs 1,310 sqft); Similar age (1956 vs 1959); Similar lot size (8,978 vs 9,000 sqft)
    $424,460

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 8.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$446,520−$43,480−8.9%
2025$490,000+$134,750+37.9%
2024$355,250$00.0%
2023$355,250−$24,750−6.5%
2022$380,000+$85,960+29.2%
2021$294,040−$12,990−4.2%
2020$307,030——
6-year total+$139,490+45.4%