Cook County Value

9717 S 51st Ave, Oak Lawn, IL 60453

2 bed / 1 bath, 1,073 sqft, built 1941, in Worth. Assessor market value for 2026: $280,000.

Cook County account 24092160750000

Assessor market value
$280,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,073 sqft
$261 per sqft
Year built
1941
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 60453, Worth, and Oak Lawn assessment pages.

Local guide: Worth Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Worth, appeals to the Assessor closed . Board of Review dates for Worth 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 increased 27.3% from $220,000 in 2025 to $280,000 in 2026.
  • Assessor market value per square footThe current public record shows about $261 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Worth neighborhood and ZIP 60453.
  • Neighborhood value signalAmong 2,527 residential records in the same neighborhood, the average assessor market value is about $201 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +21.0% on average.

Comparable assessments

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

  • 9625 S 52nd Ave, Oak Lawn, IL 60453
    1,066 sqft | $225/sqft | built 1945 | Similar size (1,066 vs 1,073 sqft); Similar age (1945 vs 1941); Similar lot size (6,200 vs 6,808 sqft)
    $240,000
  • 9820 S Tulley Ave, Oak Lawn, IL 60453
    1,081 sqft | $231/sqft | built 1955 | Similar size (1,081 vs 1,073 sqft); Similar lot size (6,864 vs 6,808 sqft); Same quality (Average)
    $250,000
  • 10108 S Harnew Rd E, Oak Lawn, IL 60453
    1,070 sqft | $224/sqft | built 1948 | Similar size (1,070 vs 1,073 sqft); Lot 10% larger (7,513 vs 6,808 sqft); Same quality (Average)
    $240,000
  • 4841 W Lamb Dr, Oak Lawn, IL 60453
    1,055 sqft | $227/sqft | built 1956 | Similar size (1,055 vs 1,073 sqft); Similar lot size (6,850 vs 6,808 sqft); Same quality (Average)
    $240,000
  • 4814 W 97th Pl, Oak Lawn, IL 60453
    1,056 sqft | $227/sqft | built 1954 | Similar size (1,056 vs 1,073 sqft); Similar lot size (6,616 vs 6,808 sqft); Same quality (Average)
    $240,000

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 27.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$280,000+$60,000+27.3%
2025$220,000$00.0%
2024$220,000$00.0%
2023$220,000+$47,700+27.7%
2022$172,300$00.0%
2021$172,300$00.0%
2020$172,300——
6-year total+$107,700+62.5%