Cook County Value

30 Coventry Rd Northfield, IL 60093

6 bed / 3 bath, 3,488 sqft, built 1971, in Northfield. Assessor market value for 2026: $1,178,050.

Cook County account 04251001140000

Assessor market value
$1,178,050
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,488 sqft
$338 per sqft
Year built
1971
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 8.7% from $1,290,000 in 2025 to $1,178,050 in 2026.
  • Assessor market value per square footThe current public record shows about $338 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 1,262 residential records in the same neighborhood, the average assessor market value is about $367 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.1% on average.

Comparable assessments

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

  • 2128 Valley Lo Ln, Glenview, IL 60025
    3,569 sqft | $282/sqft | built 1975 | Similar size (3,569 vs 3,488 sqft); Similar age (1975 vs 1971); Similar lot size (18,090 vs 18,906 sqft)
    $1,007,970
  • 62 Coventry Rd Northfield, IL 60093
    3,445 sqft | $354/sqft | built 1972 | Similar size (3,445 vs 3,488 sqft); Similar age (1972 vs 1971); Similar lot size (20,047 vs 18,906 sqft)
    $1,220,000
  • 1220 Oakwood Rd, Glenview, IL 60025
    3,471 sqft | $326/sqft | built 1970 | Similar size (3,471 vs 3,488 sqft); Similar age (1970 vs 1971); Lot 15% larger (21,649 vs 18,906 sqft)
    $1,130,000
  • 76 Brandon Rd Northfield, IL 60093
    3,536 sqft | $328/sqft | built 1971 | Similar size (3,536 vs 3,488 sqft); Built same year (1971); Same quality (Average)
    $1,159,540
  • 950 Kings Ln, Glenview, IL 60025
    3,454 sqft | $397/sqft | built 1978 | Similar size (3,454 vs 3,488 sqft); Similar lot size (17,351 vs 18,906 sqft); Same quality (Average)
    $1,370,000

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 8.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,178,050−$111,950−8.7%
2025$1,290,000+$351,020+37.4%
2024$938,980——
2-year total+$239,070+25.5%