Cook County Value

8421 83rd Ave Hickory Hills, IL 60457

3 bed / 1 bath, 1,284 sqft, built 1985. Assessor market value for 2026: $340,010.

Cook County account 18354090290000

Assessor market value
$340,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,284 sqft
$265 per sqft
Year built
1985
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 increased 25.9% from $270,000 in 2025 to $340,010 in 2026.
  • Assessor market value per square footThe current public record shows about $265 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

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

  • 8401 84th Ave Hickory Hills, IL 60457
    1,279 sqft | $289/sqft | built 1986 | Similar size (1,279 vs 1,284 sqft); Similar age (1986 vs 1985); Similar lot size (10,075 vs 9,916 sqft)
    $370,000
  • 8427 83rd Ave Hickory Hills, IL 60457
    1,197 sqft | $292/sqft | built 1988 | 7% smaller (1,197 vs 1,284 sqft); Similar age (1988 vs 1985); Similar lot size (9,814 vs 9,916 sqft)
    $350,000
  • 8407 83rd Ct Hickory Hills, IL 60457
    1,203 sqft | $308/sqft | built 1985 | 6% smaller (1,203 vs 1,284 sqft); Built same year (1985); Similar lot size (10,307 vs 9,916 sqft)
    $370,000
  • 8566 83rd Ct Hickory Hills, IL 60457
    1,332 sqft | $240/sqft | built 1974 | Similar size (1,332 vs 1,284 sqft); Similar lot size (10,075 vs 9,916 sqft); Same quality (Average)
    $320,000
  • 8528 83rd Ct Hickory Hills, IL 60457
    1,248 sqft | $296/sqft | built 1990 | Similar size (1,248 vs 1,284 sqft); Similar age (1990 vs 1985); Similar lot size (10,075 vs 9,916 sqft)
    $370,000

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 25.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$340,010+$70,010+25.9%
2025$270,000$00.0%
2024$270,000$00.0%
2023$270,000+$54,630+25.4%
2022$215,370$00.0%
2021$215,370$00.0%
2020$215,370——
6-year total+$124,640+57.9%