Cook County Value property tax analysis

831 Columbian Ave, Oak Park, IL 60302

4 bed / 3 bath, 2,721 sqft, built 1916, in Oak Park Appraised at $1,000,000 for 2026.

Cook County account 16064020190000

Appraised value
$1,000,000
Tax year 2026
Market value
$1,000,000
Living area
2,721 sqft
$368 per sqft
Year built
1916
Average

Why this page matters for a protest

A strong tax protest page needs the county value, property facts, and enough context to compare this home with similar properties nearby. This page gives homeowners a starting point before reviewing comparable homes and prior-year changes.

The county value changed +35.0% from $740,990 in 2025 to $1,000,000 in 2026.