Cook County Value

5146 121st St, Alsip, IL 60803

3 bed / 2 bath, 2,189 sqft, built 1995, in Worth. Assessor market value for 2026: $360,000.

Cook County account 24282000150000

Assessor market value
$360,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,189 sqft
$164 per sqft
Year built
1995
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 60803, 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 40.2% from $256,700 in 2025 to $360,000 in 2026.
  • Assessor market value per square footThe current public record shows about $164 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 60803.
  • Neighborhood value signalAmong 698 residential records in the same neighborhood, the average assessor market value is about $218 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +29.9% on average.

Comparable assessments

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

  • 4952 W 118th St, Alsip, IL 60803
    2,051 sqft | $180/sqft | built 1992 | 6% smaller (2,051 vs 2,189 sqft); Similar age (1992 vs 1995); Similar lot size (6,360 vs 6,100 sqft)
    $370,000
  • 11840 S Le Claire Ave, Alsip, IL 60803
    2,030 sqft | $202/sqft | built 1996 | 7% smaller (2,030 vs 2,189 sqft); Similar age (1996 vs 1995); Similar lot size (6,240 vs 6,100 sqft)
    $410,000
  • 11624 S Lavergne Ave, Alsip, IL 60803
    2,241 sqft | $178/sqft | built 1995 | Similar size (2,241 vs 2,189 sqft); Built same year (1995); Lot 14% larger (6,968 vs 6,100 sqft)
    $400,000
  • 5134 W 121st St, Alsip, IL 60803
    1,910 sqft | $188/sqft | built 1991 | 13% smaller (1,910 vs 2,189 sqft); Similar age (1991 vs 1995); Similar lot size (6,100 vs 6,100 sqft)
    $360,000
  • 11712 S Lamon Ave, Alsip, IL 60803
    2,197 sqft | $187/sqft | built 1998 | Similar size (2,197 vs 2,189 sqft); Similar age (1998 vs 1995); Same quality (Average)
    $410,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 3630 W 125th St, Alsip, IL 60803
    June-29-2026 | 1,600 sqft | $175/sqft | built 1997 | Similar age (1997); Sold after the valuation date; Within 1 bedroom (2 vs 3)
    $280,000

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 40.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$360,000+$103,300+40.2%
2025$256,700$00.0%
2024$256,700−$33,300−11.5%
2023$290,000+$59,210+25.7%
2022$230,790−$15,690−6.4%
2021$246,480+$100.0%
2020$246,470——
6-year total+$113,530+46.1%