Cook County Value

8435 84th Ave Hickory Hills, IL 60457

3 bed / 2 bath, 1,082 sqft, built 1987 Assessor market value for 2026: $360,000.

Cook County account 18354000250000

Assessor market value
$360,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,082 sqft
$333 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 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 28.6% from $280,000 in 2025 to $360,000 in 2026.
  • Assessor market value per square footThe current public record shows about $333 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.

  • 8330 83rd Ct Hickory Hills, IL 60457
    1,096 sqft | $338/sqft | built 1992 | Similar size (1,096 vs 1,082 sqft); Similar age (1992 vs 1987); Similar lot size (10,075 vs 10,075 sqft)
    $370,000
  • 8340 83rd Ct Hickory Hills, IL 60457
    1,072 sqft | $336/sqft | built 1989 | Similar size (1,072 vs 1,082 sqft); Similar age (1989 vs 1987); Similar lot size (10,075 vs 10,075 sqft)
    $360,000
  • 8541 84th Ave Hickory Hills, IL 60457
    1,026 sqft | $351/sqft | built 1987 | 5% smaller (1,026 vs 1,082 sqft); Built same year (1987); Similar lot size (10,075 vs 10,075 sqft)
    $360,000
  • 8404 83rd Ct Hickory Hills, IL 60457
    1,145 sqft | $314/sqft | built 1987 | 6% larger (1,145 vs 1,082 sqft); Built same year (1987); Similar lot size (10,075 vs 10,075 sqft)
    $360,000
  • 8504 82nd Ct Hickory Hills, IL 60457
    1,056 sqft | $322/sqft | built 1972 | Similar size (1,056 vs 1,082 sqft); Similar lot size (10,307 vs 10,075 sqft); Same quality (Average)
    $340,000

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: . 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 28.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$360,000+$80,000+28.6%
2025$280,000$00.0%
2024$280,000$00.0%
2023$280,000+$45,640+19.5%
2022$234,360$00.0%
2021$234,360+$100.0%
2020$234,350——
6-year total+$125,650+53.6%