Cook County Value

15740 Willard Ave, Harvey, IL 60426

3 bed / 1 bath, 1,050 sqft, built 1955, in Thornton. Assessor market value for 2025: $70,000.

Cook County account 29174060600000

Possibly too high

about $1,000

8 similar homes nearby point to a value about $1,000 lower than yours.

Assessor market value$70,000
Similar homes$68,502
$1,498 gap · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$70,000
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,050 sqft
$67 per sqft
Year built
1955
Average quality

Why we think so

Similar homes' assessments

Moderate

6 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $63.94/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $25,800. Counting your land in place of theirs where theirs is less, they support a value of $68,502.

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 60426 and Thornton assessment pages.

Appeal deadlines

Thornton 2026 appeal dates 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 stayed about the same, from $70,000 in 2024 to $70,000 in 2025.
  • Assessor market value per square footThe current public record shows about $67 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Thornton neighborhood and ZIP 60426.
  • Neighborhood value signalAmong 2,010 residential records in the same neighborhood, the average assessor market value is about $62 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 16453 Honore Ave Markham, IL 60428
    1,048 sqft | $64/sqft | built 1957 | Similar size (1,048 vs 1,050 sqft); Similar age (1957 vs 1955); Similar lot size (7,740 vs 7,938 sqft)
    $67,010
  • 16629 Honore Ave Markham, IL 60428
    1,048 sqft | $67/sqft | built 1963 | Similar size (1,048 vs 1,050 sqft); Similar lot size (7,740 vs 7,938 sqft); Same quality (Average)
    $70,010
  • 1745 W 163rd St Markham, IL 60428
    1,053 sqft | $63/sqft | built 1959 | Similar size (1,053 vs 1,050 sqft); Similar age (1959 vs 1955); Similar lot size (7,260 vs 7,938 sqft)
    $66,010
  • 1624 W 163rd St Markham, IL 60428
    1,048 sqft | $73/sqft | built 1957 | Similar size (1,048 vs 1,050 sqft); Similar age (1957 vs 1955); Similar lot size (8,500 vs 7,938 sqft)
    $77,010
  • 16235 Marshfield Ave Markham, IL 60428
    1,053 sqft | $63/sqft | built 1962 | Similar size (1,053 vs 1,050 sqft); Similar lot size (7,440 vs 7,938 sqft); Same quality (Average)
    $66,000

Recent comparable sales

Sales selected by similarity to the subject property.

Public appraisal comparison for 2025. 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

No change in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$70,000$00.0%
2024$70,000$00.0%
2023$70,000+$18,180+35.1%
2022$51,820$00.0%
2021$51,820+$100.0%
2020$51,810——
5-year total+$18,190+35.1%