Cook County Value

3135 Oak Ave, Brookfield, IL 60513

3 bed / 1 bath, 1,152 sqft, built 1942, in Proviso. Assessor market value for 2026: $330,000.

Cook County account 15342030340000

Assessor market value
$330,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,152 sqft
$286 per sqft
Year built
1942
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 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 38.6% from $238,050 in 2025 to $330,000 in 2026.
  • Assessor market value per square footThe current public record shows about $286 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.

  • 3127 Elm Ave, Brookfield, IL 60513
    1,178 sqft | $289/sqft | built 1943 | Similar size (1,178 vs 1,152 sqft); Similar age (1943 vs 1942); Similar lot size (4,158 vs 4,158 sqft)
    $340,000
  • 3136 Elm Ave, Brookfield, IL 60513
    1,164 sqft | $284/sqft | built 1943 | Similar size (1,164 vs 1,152 sqft); Similar age (1943 vs 1942); Similar lot size (3,780 vs 4,158 sqft)
    $330,000
  • 3229 Park Ave, Brookfield, IL 60513
    1,173 sqft | $281/sqft | built 1941 | Similar size (1,173 vs 1,152 sqft); Similar age (1941 vs 1942); Similar lot size (3,780 vs 4,158 sqft)
    $330,000
  • 3322 Park Ave, Brookfield, IL 60513
    1,186 sqft | $270/sqft | built 1942 | Similar size (1,186 vs 1,152 sqft); Built same year (1942); Similar lot size (3,780 vs 4,158 sqft)
    $320,000
  • 3231 Oak Ave, Brookfield, IL 60513
    1,192 sqft | $277/sqft | built 1942 | Similar size (1,192 vs 1,152 sqft); Built same year (1942); Similar lot size (3,780 vs 4,158 sqft)
    $330,000

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 38.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$330,000+$91,950+38.6%
2025$238,050$00.0%
2024$238,050$00.0%
2023$238,050+$22,870+10.6%
2022$215,180$00.0%
2021$215,180−$16,550−7.1%
2020$231,730——
6-year total+$98,270+42.4%