Cook County Value

5735 S Gilbert Ave Countryside, IL 60525

5 bed / 2 bath, 3,873 sqft, built 1996, in Lyons. Assessor market value for 2026: $780,000.

Cook County account 18172120130000

Assessor market value
$780,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,873 sqft
$201 per sqft
Year built
1996
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 21.9% from $640,000 in 2025 to $780,000 in 2026.
  • Assessor market value per square footThe current public record shows about $201 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 1,708 residential records in the same neighborhood, the average assessor market value is about $282 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +27.5% on average.

Comparable assessments

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

  • 5429 Laurel Ave, La Grange, IL 60525
    3,723 sqft | $255/sqft | built 2001 | Similar size (3,723 vs 3,873 sqft); Similar age (2001 vs 1996); Similar lot size (17,212 vs 17,600 sqft)
    $950,000
  • 5939 S Edgewood Ave, La Grange, IL 60525
    3,820 sqft | $277/sqft | built 2001 | Similar size (3,820 vs 3,873 sqft); Similar age (2001 vs 1996); Similar lot size (16,800 vs 17,600 sqft)
    $1,060,000
  • 6106 S Peck Ave, La Grange, IL 60525
    4,028 sqft | $241/sqft | built 2005 | Similar size (4,028 vs 3,873 sqft); Similar lot size (17,605 vs 17,600 sqft); Same quality (Average)
    $970,000
  • 1403 62nd Pl, La Grange, IL 60525
    4,016 sqft | $256/sqft | built 2004 | Similar size (4,016 vs 3,873 sqft); Similar lot size (17,600 vs 17,600 sqft); Same quality (Average)
    $1,030,000
  • 5727 Howard Ave, La Grange, IL 60525
    3,644 sqft | $266/sqft | built 1999 | 6% smaller (3,644 vs 3,873 sqft); Similar age (1999 vs 1996); Similar lot size (16,380 vs 17,600 sqft)
    $970,000

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 21.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$780,000+$140,000+21.9%
2025$640,000$00.0%
2024$640,000$00.0%
2023$640,000+$206,250+47.6%
2022$433,750$00.0%
2021$433,750+$100.0%
2020$433,740——
6-year total+$346,260+79.8%