Cook County Value

3240 Vernon Ave, Brookfield, IL 60513

3 bed / 1 bath, 1,079 sqft, built 1954, in Proviso. Assessor market value for 2026: $320,000.

Cook County account 15342110390000

Small or uncertain difference

about $2,000

8 similar homes nearby point to a value about $2,000 lower than yours, a small or uncertain difference.

Assessor market value$320,000
Similar homes$318,445
$1,555 gap · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$320,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,079 sqft
$297 per sqft
Year built
1954
Average quality

Why we think so

Similar homes' assessments

Weak

5 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $294.66/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $79,380. Counting your land in place of theirs where theirs is less, they support a value of $318,445.

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 60513 and Proviso assessment pages.

Local guide: Proviso Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Proviso, appeals to the Assessor are open through (8 days left).

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 increased 28.0% from $250,000 in 2025 to $320,000 in 2026.
  • Assessor market value per square footThe current public record shows about $297 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Proviso neighborhood and ZIP 60513.
  • Neighborhood value signalAmong 757 residential records in the same neighborhood, the average assessor market value is about $277 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +33.3% on average.

Comparable assessments

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

  • 3225 Elm Ave, Brookfield, IL 60513
    1,086 sqft | $295/sqft | built 1953 | Similar size (1,086 vs 1,079 sqft); Similar age (1953 vs 1954); Similar lot size (7,560 vs 7,560 sqft)
    $320,000
  • 3247 Vernon Ave, Brookfield, IL 60513
    1,063 sqft | $282/sqft | built 1952 | Similar size (1,063 vs 1,079 sqft); Similar age (1952 vs 1954); Similar lot size (7,560 vs 7,560 sqft)
    $300,000
  • 3246 Oak Ave, Brookfield, IL 60513
    1,050 sqft | $333/sqft | built 1954 | Similar size (1,050 vs 1,079 sqft); Built same year (1954); Similar lot size (7,560 vs 7,560 sqft)
    $350,000
  • 3347 Maple Ave, Brookfield, IL 60513
    1,128 sqft | $275/sqft | built 1953 | Similar size (1,128 vs 1,079 sqft); Similar age (1953 vs 1954); Similar lot size (7,500 vs 7,560 sqft)
    $310,000
  • 3246 Vernon Ave, Brookfield, IL 60513
    1,116 sqft | $269/sqft | built 1950 | Similar size (1,116 vs 1,079 sqft); Similar age (1950 vs 1954); Similar lot size (7,560 vs 7,560 sqft)
    $300,000

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

Up 28.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$320,000+$70,000+28.0%
2025$250,000$00.0%
2024$250,000$00.0%
2023$250,000−$7,710−3.0%
2022$257,710$00.0%
2021$257,710$00.0%
2020$257,710——
6-year total+$62,290+24.2%