Cook County Value

824 S Grove Ave, Oak Park, IL 60304

4 bed / 2 bath, 1,997 sqft, built 1912, in Oak Park. Assessor market value for 2026: $580,000.

Cook County account 16181350080000

Assessor market value
$580,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,997 sqft
$290 per sqft
Year built
1912
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 60304, Oak Park, and Oak Park assessment pages.

Local guide: Oak Park Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Oak Park have closed (Assessor , Board of Review ). 2027 notices usually start in March.

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 26.1% from $460,000 in 2025 to $580,000 in 2026.
  • Assessor market value per square footThe current public record shows about $290 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Oak Park neighborhood and ZIP 60304.
  • Neighborhood value signalAmong 1,503 residential records in the same neighborhood, the average assessor market value is about $318 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +27.4% on average.

Comparable assessments

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

  • 620 Wenonah Ave, Oak Park, IL 60304
    1,998 sqft | $305/sqft | built 1916 | Similar size (1,998 vs 1,997 sqft); Similar age (1916 vs 1912); Similar lot size (4,166 vs 4,166 sqft)
    $610,000
  • 741 Wesley Ave, Oak Park, IL 60304
    2,030 sqft | $317/sqft | built 1911 | Similar size (2,030 vs 1,997 sqft); Similar age (1911 vs 1912); Similar lot size (4,199 vs 4,166 sqft)
    $643,980
  • 740 S East Ave, Oak Park, IL 60304
    2,031 sqft | $286/sqft | built 1913 | Similar size (2,031 vs 1,997 sqft); Similar age (1913 vs 1912); Similar lot size (4,168 vs 4,166 sqft)
    $580,000
  • 621 S Euclid Ave, Oak Park, IL 60304
    1,988 sqft | $302/sqft | built 1919 | Similar size (1,988 vs 1,997 sqft); Similar lot size (4,199 vs 4,166 sqft); Same quality (Average)
    $600,000
  • 732 S Oak Park Ave, Oak Park, IL 60304
    1,975 sqft | $268/sqft | built 1913 | Similar size (1,975 vs 1,997 sqft); Similar age (1913 vs 1912); Similar lot size (4,199 vs 4,166 sqft)
    $530,000

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 26.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$580,000+$120,000+26.1%
2025$460,000$00.0%
2024$460,000$00.0%
2023$460,000+$32,310+7.6%
2022$427,690$00.0%
2021$427,690$00.0%
2020$427,690——
6-year total+$152,310+35.6%