Cook County Value

1008 N Mason Ave, Chicago, IL 60651

4 bed / 2 bath, 1,920 sqft, built 1868, in West Chicago. Assessor market value for 2026: $220,000.

Cook County account 16054080330000

Assessor market value
$220,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,920 sqft
$115 per sqft
Year built
1868
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 60651 and West Chicago assessment pages.

Local guide: West Chicago Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For West Chicago, appeals to the Assessor closed . Board of Review dates for West Chicago 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 $220,000 in 2025 to $220,000 in 2026.
  • Assessor market value per square footThe current public record shows about $115 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the West Chicago neighborhood and ZIP 60651.
  • Neighborhood value signalAmong 6,607 residential records in the same neighborhood, the average assessor market value is about $118 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.1% on average.

Comparable assessments

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

  • 5946 W Erie St, Chicago, IL 60644
    1,920 sqft | $120/sqft | built 1878 | Similar size (1,920 vs 1,920 sqft); Similar lot size (4,800 vs 4,838 sqft); Same quality (Average)
    $230,000
  • 732 N Central Ave, Chicago, IL 60644
    1,928 sqft | $109/sqft | built 1873 | Similar size (1,928 vs 1,920 sqft); Similar age (1873 vs 1868); Similar lot size (5,070 vs 4,838 sqft)
    $210,000
  • 724 N Long Ave, Chicago, IL 60644
    1,812 sqft | $171/sqft | built 1873 | 6% smaller (1,812 vs 1,920 sqft); Similar age (1873 vs 1868); Similar lot size (4,956 vs 4,838 sqft)
    $310,000
  • 5518 W Race Ave, Chicago, IL 60644
    1,892 sqft | $104/sqft | built 1878 | Similar size (1,892 vs 1,920 sqft); Similar lot size (5,142 vs 4,838 sqft); Same quality (Average)
    $197,000
  • 317 N Long Ave, Chicago, IL 60644
    2,128 sqft | $86/sqft | built 1868 | 11% larger (2,128 vs 1,920 sqft); Built same year (1868); Similar lot size (4,995 vs 4,838 sqft)
    $184,000

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

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$220,000$00.0%
2025$220,000$00.0%
2024$220,000+$130,000+144.4%
2023$90,000$00.0%
2022$90,000$00.0%
2021$90,000−$51,640−36.5%
2020$141,640——
6-year total+$78,360+55.3%