Cook County Value

331 Dover Ave La Grange Park, IL 60526

5 bed / 2 bath, 2,332 sqft, built 1952, in Proviso. Assessor market value for 2026: $830,000.

Cook County account 15324160060000

Assessor market value
$830,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,332 sqft
$356 per sqft
Year built
1952
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 60526 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 9.2% from $760,000 in 2025 to $830,000 in 2026.
  • Assessor market value per square footThe current public record shows about $356 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 60526.
  • Neighborhood value signalAmong 286 residential records in the same neighborhood, the average assessor market value is about $306 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +30.7% on average.

Comparable assessments

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

  • 329 Dover Ave La Grange Park, IL 60526
    2,362 sqft | $171/sqft | built 1953 | Similar size (2,362 vs 2,332 sqft); Similar age (1953 vs 1952); Similar lot size (6,650 vs 6,650 sqft)
    $404,900
  • 329 Dover Ave La Grange Park, IL 60526
    2,362 sqft | $171/sqft | built 1953 | Similar size (2,362 vs 2,332 sqft); Similar age (1953 vs 1952); Similar lot size (6,650 vs 6,650 sqft)
    $404,900
  • 521 Dover Ave La Grange Park, IL 60526
    2,421 sqft | $310/sqft | built 1953 | Similar size (2,421 vs 2,332 sqft); Similar age (1953 vs 1952); Similar lot size (6,650 vs 6,650 sqft)
    $750,000
  • 341 Dover Ave La Grange Park, IL 60526
    2,321 sqft | $353/sqft | built 1949 | Similar size (2,321 vs 2,332 sqft); Similar age (1949 vs 1952); Similar lot size (6,650 vs 6,650 sqft)
    $820,000
  • 432 N Edgewood Ave La Grange Park, IL 60526
    2,242 sqft | $262/sqft | built 1952 | Similar size (2,242 vs 2,332 sqft); Built same year (1952); Similar lot size (6,650 vs 6,650 sqft)
    $587,410

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1217 Newberry Ave La Grange Park, IL 60526
    June-29-2026 | 1,794 sqft | $308/sqft | built 1952 | Similar age (1952); Sold after the valuation date
    $552,000
  • 341 Malden Ave La Grange Park, IL 60526
    2,199 sqft | $466/sqft | built 1951 | 6% size difference (2,199 sqft); Similar age (1951); Within 1 bedroom (4 vs 5)
    $1,025,000

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 9.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$830,000+$70,000+9.2%
2025$760,000$00.0%
2024$760,000$00.0%
2023$760,000+$226,420+42.4%
2022$533,580$00.0%
2021$533,580+$48,650+10.0%
2020$484,930——
6-year total+$345,070+71.2%