Cook County Value

8544 S 84th Ave Hickory Hills, IL 60457

6 bed / 3 bath, 1,411 sqft, built 1986. Assessor market value for 2026: $350,010.

Cook County account 18353090300000

Assessor market value
$350,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,411 sqft
$248 per sqft
Year built
1986
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 60457 and CCAO Appraisal Area 21121 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 changed from $216,790 in 2025 to $350,010 in 2026. A change this large often reflects new construction, a reclassification or a record correction, so check it against the county record.
  • Assessor market value per square footThe current public record shows about $248 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 60457.
  • Neighborhood value signalAmong 489 residential records in the same neighborhood, the average assessor market value is about $245 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +35.3% on average.

Comparable assessments

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

  • 8443 84th Ct Hickory Hills, IL 60457
    1,381 sqft | $268/sqft | built 1976 | Similar size (1,381 vs 1,411 sqft); Similar lot size (18,500 vs 18,500 sqft); Same quality (Average)
    $370,010
  • 8401 84th Ct Hickory Hills, IL 60457
    1,466 sqft | $259/sqft | built 1978 | Similar size (1,466 vs 1,411 sqft); Similar lot size (18,500 vs 18,500 sqft); Same quality (Average)
    $380,010
  • 8323 85th Ct Hickory Hills, IL 60457
    1,377 sqft | $276/sqft | built 1988 | Similar size (1,377 vs 1,411 sqft); Similar age (1988 vs 1986); Lot 11% larger (20,601 vs 18,500 sqft)
    $380,000
  • 8318 84th Ave Hickory Hills, IL 60457
    1,606 sqft | $262/sqft | built 1991 | 14% larger (1,606 vs 1,411 sqft); Similar age (1991 vs 1986); Similar lot size (18,500 vs 18,500 sqft)
    $420,010
  • 8620 84th Ct Hickory Hills, IL 60457
    1,339 sqft | $306/sqft | built 1993 | 5% smaller (1,339 vs 1,411 sqft); Lot 12% larger (20,790 vs 18,500 sqft); Same quality (Average)
    $410,000

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 61.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$350,010+$133,220+61.5%
2025$216,790−$44,570−17.1%
2024$261,360−$8,650−3.2%
2023$270,010+$78,670+41.1%
2022$191,340$00.0%
2021$191,340−$31,780−14.2%
2020$223,120——
6-year total+$126,890+56.9%