Cook County Value

505 The Ln, Hinsdale, IL 60521

5 bed / 3 bath, 2,442 sqft, built 1987, in Lyons. Assessor market value for 2026: $1,030,000.

Cook County account 18061230120000

Assessor market value
$1,030,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,442 sqft
$422 per sqft
Year built
1987
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 60521 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 25.6% from $820,000 in 2025 to $1,030,000 in 2026.
  • Assessor market value per square footThe current public record shows about $422 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 60521.
  • Neighborhood value signalAmong 359 residential records in the same neighborhood, the average assessor market value is about $397 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +29.0% on average.

Comparable assessments

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

  • 308 Justina St, Hinsdale, IL 60521
    2,427 sqft | $391/sqft | built 1987 | Similar size (2,427 vs 2,442 sqft); Built same year (1987); Similar lot size (6,732 vs 6,720 sqft)
    $950,000
  • 222 Justina St, Hinsdale, IL 60521
    2,455 sqft | $456/sqft | built 1993 | Similar size (2,455 vs 2,442 sqft); Similar lot size (6,600 vs 6,720 sqft); Same quality (Average)
    $1,120,000
  • 327 Phillippa St, Hinsdale, IL 60521
    2,436 sqft | $419/sqft | built 1993 | Similar size (2,436 vs 2,442 sqft); Similar lot size (6,732 vs 6,720 sqft); Same quality (Average)
    $1,020,000
  • 323 Phillippa St, Hinsdale, IL 60521
    2,538 sqft | $382/sqft | built 1989 | Similar size (2,538 vs 2,442 sqft); Similar age (1989 vs 1987); Similar lot size (6,732 vs 6,720 sqft)
    $970,000
  • 229 Phillippa St, Hinsdale, IL 60521
    2,448 sqft | $429/sqft | built 1994 | Similar size (2,448 vs 2,442 sqft); Similar lot size (6,600 vs 6,720 sqft); Same quality (Average)
    $1,050,000

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 25.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,030,000+$210,000+25.6%
2025$820,000$00.0%
2024$820,000$00.0%
2023$820,000+$159,020+24.1%
2022$660,980$00.0%
2021$660,980−$64,230−8.9%
2020$725,210——
6-year total+$304,790+42.0%