Cook County Value

505 6th Ave, La Grange, IL 60525

4 bed / 2 bath, 1,671 sqft, built 1962, in Lyons. Assessor market value for 2026: $480,010.

Cook County account 18092010330000

Assessor market value
$480,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,671 sqft
$287 per sqft
Year built
1962
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 6.7% from $450,000 in 2025 to $480,010 in 2026.
  • Assessor market value per square footThe current public record shows about $287 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

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

  • 504 7th Ave, La Grange, IL 60525
    1,674 sqft | $293/sqft | built 1957 | Similar size (1,674 vs 1,671 sqft); Similar age (1957 vs 1962); Similar lot size (8,437 vs 8,437 sqft)
    $490,010
  • 501 8th Ave, La Grange, IL 60525
    1,699 sqft | $247/sqft | built 1956 | Similar size (1,699 vs 1,671 sqft); Similar lot size (8,437 vs 8,437 sqft); Same quality (Average)
    $420,010
  • 9721 W 57th St Countryside, IL 60525
    1,603 sqft | $281/sqft | built 1963 | Similar size (1,603 vs 1,671 sqft); Similar age (1963 vs 1962); Similar lot size (8,100 vs 8,437 sqft)
    $450,000
  • 9723 W 58th St Countryside, IL 60525
    1,683 sqft | $232/sqft | built 1966 | Similar size (1,683 vs 1,671 sqft); Similar age (1966 vs 1962); Lot 11% smaller (7,540 vs 8,437 sqft)
    $390,000
  • 847 8th Ave, La Grange, IL 60525
    1,607 sqft | $317/sqft | built 1953 | Similar size (1,607 vs 1,671 sqft); Similar lot size (8,576 vs 8,437 sqft); Same quality (Average)
    $510,000

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 6.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$480,010+$30,010+6.7%
2025$450,000$00.0%
2024$450,000$00.0%
2023$450,000+$142,050+46.1%
2022$307,950$00.0%
2021$307,950$00.0%
2020$307,950——
6-year total+$172,060+55.9%