Cook County Value

9818 W 57th St Countryside, IL 60525

4 bed / 3 bath, 2,994 sqft, built 2000, in Lyons. Assessor market value for 2026: $770,000.

Cook County account 18162050110000

Assessor market value
$770,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,994 sqft
$257 per sqft
Year built
2000
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 60525 and Lyons assessment pages.

Local guide: Lyons Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Lyons, appeals to the Assessor closed . Board of Review dates for Lyons 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 27.7% from $602,840 in 2025 to $770,000 in 2026.
  • Assessor market value per square footThe current public record shows about $257 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lyons neighborhood and ZIP 60525.
  • Neighborhood value signalAmong 1,221 residential records in the same neighborhood, the average assessor market value is about $274 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +24.5% on average.

Comparable assessments

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

  • 9706 W 57th St Countryside, IL 60525
    3,214 sqft | $224/sqft | built 2001 | 7% larger (3,214 vs 2,994 sqft); Similar age (2001 vs 2000); Similar lot size (21,524 vs 21,572 sqft)
    $720,000
  • 9814 W 57th St Countryside, IL 60525
    2,842 sqft | $246/sqft | built 1999 | 5% smaller (2,842 vs 2,994 sqft); Similar age (1999 vs 2000); Similar lot size (22,126 vs 21,572 sqft)
    $700,000
  • 9805 W 57th St Countryside, IL 60525
    2,814 sqft | $252/sqft | built 1998 | 6% smaller (2,814 vs 2,994 sqft); Similar age (1998 vs 2000); Similar lot size (22,124 vs 21,572 sqft)
    $710,000
  • 9820 W 58th St Countryside, IL 60525
    3,030 sqft | $231/sqft | built 1995 | Similar size (3,030 vs 2,994 sqft); Similar age (1995 vs 2000); Similar lot size (19,823 vs 21,572 sqft)
    $700,000
  • 9810 W 57th St Countryside, IL 60525
    3,332 sqft | $237/sqft | built 1999 | 11% larger (3,332 vs 2,994 sqft); Similar age (1999 vs 2000); Similar lot size (21,572 vs 21,572 sqft)
    $790,000

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 27.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$770,000+$167,160+27.7%
2025$602,840$00.0%
2024$602,840$00.0%
2023$602,840−$14,030−2.3%
2022$616,870−$32,810−5.1%
2021$649,680+$200.0%
2020$649,660——
6-year total+$120,340+18.5%