Cook County Value

4212 W 99th Pl, Oak Lawn, IL 60453

3 bed / 1 bath, 1,440 sqft, built 1947, in Worth. Assessor market value for 2026: $240,010.

Cook County account 24104200470000

Assessor market value
$240,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,440 sqft
$167 per sqft
Year built
1947
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 9.1% from $220,000 in 2025 to $240,010 in 2026.
  • Assessor market value per square footThe current public record shows about $167 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 5,144 residential records in the same neighborhood, the average assessor market value is about $191 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +18.7% on average.

Comparable assessments

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

  • 4100 W 100th St, Oak Lawn, IL 60453
    1,440 sqft | $167/sqft | built 1949 | Similar size (1,440 vs 1,440 sqft); Similar age (1949 vs 1947); Similar lot size (6,550 vs 6,550 sqft)
    $240,010
  • 4249 W 99th St, Oak Lawn, IL 60453
    1,448 sqft | $173/sqft | built 1948 | Similar size (1,448 vs 1,440 sqft); Similar age (1948 vs 1947); Similar lot size (6,550 vs 6,550 sqft)
    $250,010
  • 4029 W 99th St, Oak Lawn, IL 60453
    1,440 sqft | $160/sqft | built 1947 | Similar size (1,440 vs 1,440 sqft); Built same year (1947); Similar lot size (6,550 vs 6,550 sqft)
    $230,010
  • 4341 W 99th Pl, Oak Lawn, IL 60453
    1,440 sqft | $174/sqft | built 1947 | Similar size (1,440 vs 1,440 sqft); Built same year (1947); Similar lot size (6,550 vs 6,550 sqft)
    $250,010
  • 10104 S Turner Ave Evergreen Park, IL 60805
    1,439 sqft | $195/sqft | built 1951 | Similar size (1,439 vs 1,440 sqft); Similar age (1951 vs 1947); Similar lot size (6,500 vs 6,550 sqft)
    $280,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 5249 W 88th St, Oak Lawn, IL 60453
    June-29-2026 | 1,517 sqft | $198/sqft | built 1952 | 5% size difference (1,517 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $300,000
  • 4029 W 99th St, Oak Lawn, IL 60453
    1,440 sqft | $174/sqft | built 1947 | Similar size (1,440 sqft); Similar age (1947); Within 1 bedroom (2 vs 3)
    $250,000
  • 8733 S 51st Ave, Oak Lawn, IL 60453
    1,303 sqft | $158/sqft | built 1954 | 10% size difference (1,303 sqft); Moderate age difference (7 years newer); Same beds (3)
    $206,000
  • 9933 S Kilbourn Ave, Oak Lawn, IL 60453
    1,480 sqft | $257/sqft | built 1961 | Similar size (1,480 sqft); Same beds (3)
    $380,000
  • 5412 W 90th St, Oak Lawn, IL 60453
    1,212 sqft | $268/sqft | built 1951 | Moderate age difference (4 years newer); Within 1 bedroom (2 vs 3)
    $325,000

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 9.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$240,010+$20,010+9.1%
2025$220,000$00.0%
2024$220,000$00.0%
2023$220,000+$44,630+25.4%
2022$175,370$00.0%
2021$175,370+$100.0%
2020$175,360——
6-year total+$64,650+36.9%