Cook County Value

15026 Diekman Ct, Dolton, IL 60419

3 bed / 1 bath, 1,323 sqft, built 1975, in Thornton. Assessor market value for 2025: $140,000.

Cook County account 29114180200000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$140,000
Similar homes$145,847
No gap: similar homes are at or above the county value · bars start at $0

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

Assessor market value
$140,000
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,323 sqft
$106 per sqft
Year built
1975
Average quality

What we found

Similar homes' assessments

Weak

2 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $107.03/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 $45,510. Counting your land in place of theirs where theirs is less, they support a value of $145,847.

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 60419 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 $140,000 in 2024 to $140,000 in 2025.
  • Assessor market value per square footThe current public record shows about $106 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 60419.
  • Neighborhood value signalAmong 2,179 residential records in the same neighborhood, the average assessor market value is about $113 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.

  • 15031 Diekman Ct, Dolton, IL 60419
    1,308 sqft | $115/sqft | built 1975 | Similar size (1,308 vs 1,323 sqft); Built same year (1975); Similar lot size (9,676 vs 10,708 sqft)
    $150,000
  • 15035 Diekman Ct, Dolton, IL 60419
    1,308 sqft | $107/sqft | built 1975 | Similar size (1,308 vs 1,323 sqft); Built same year (1975); Lot 10% smaller (9,600 vs 10,708 sqft)
    $140,000
  • 15027 Diekman Ct, Dolton, IL 60419
    1,308 sqft | $107/sqft | built 1977 | Similar size (1,308 vs 1,323 sqft); Similar age (1977 vs 1975); Lot 11% larger (11,889 vs 10,708 sqft)
    $140,000
  • 15630 University Dr, Dolton, IL 60419
    1,330 sqft | $113/sqft | built 1963 | Similar size (1,330 vs 1,323 sqft); Similar lot size (11,050 vs 10,708 sqft); Same quality (Average)
    $150,000
  • 15038 Diekman Ct, Dolton, IL 60419
    1,298 sqft | $100/sqft | built 1975 | Similar size (1,298 vs 1,323 sqft); Built same year (1975); Lot 14% smaller (9,234 vs 10,708 sqft)
    $130,010

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$140,000$00.0%
2024$140,000$00.0%
2023$140,000+$25,420+22.2%
2022$114,580$00.0%
2021$114,580+$100.0%
2020$114,570——
5-year total+$25,430+22.2%