Cook County Value

526 E 1st St, Hinsdale, IL 60521

5 bed / 5 bath, 5,841 sqft, built 1999. Assessor market value for 2026: $2,930,000.

Cook County account 18071050130000

Assessor market value
$2,930,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
5,841 sqft
$502 per sqft
Year built
1999
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 CCAO Appraisal Area 21061 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 52.2% from $1,925,340 in 2025 to $2,930,000 in 2026.
  • Assessor market value per square footThe current public record shows about $502 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 60521.
  • Neighborhood value signalAmong 384 residential records in the same neighborhood, the average assessor market value is about $439 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +37.7% on average.

Comparable assessments

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

  • 141 S County Line Rd, Hinsdale, IL 60521
    5,854 sqft | $465/sqft | built 2003 | Similar size (5,854 vs 5,841 sqft); Similar age (2003 vs 1999); Similar lot size (19,387 vs 20,000 sqft)
    $2,720,000
  • 809 Wilson Ln Hse, Hinsdale, IL 60521
    5,731 sqft | $428/sqft | built 2001 | Similar size (5,731 vs 5,841 sqft); Similar age (2001 vs 1999); Similar lot size (18,700 vs 20,000 sqft)
    $2,450,000
  • 144 Hillcrest Dr, Hinsdale, IL 60521
    5,930 sqft | $499/sqft | built 2001 | Similar size (5,930 vs 5,841 sqft); Similar age (2001 vs 1999); Similar lot size (18,375 vs 20,000 sqft)
    $2,960,000
  • 707 Bittersweet St, Hinsdale, IL 60521
    6,122 sqft | $490/sqft | built 2000 | Similar size (6,122 vs 5,841 sqft); Similar age (2000 vs 1999); Similar lot size (19,780 vs 20,000 sqft)
    $3,000,000
  • 750 Wilson Ln, Hinsdale, IL 60521
    5,989 sqft | $488/sqft | built 2007 | Similar size (5,989 vs 5,841 sqft); Similar lot size (19,500 vs 20,000 sqft); Same quality (Average)
    $2,920,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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 52.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$2,930,000+$1,004,660+52.2%
2025$1,925,340$00.0%
2024$1,925,340−$394,660−17.0%
2023$2,320,000+$381,750+19.7%
2022$1,938,250$00.0%
2021$1,938,250−$119,180−5.8%
2020$2,057,430——
6-year total+$872,570+42.4%