Cook County Value property tax analysis

515 Gunderson Ave, Oak Park, IL 60304

3 bed / 2 bath, 1,476 sqft, built 1921, in Oak Park Appraised at $520,000 for 2026.

Cook County account 16182050230000

Appraised value
$520,000
Tax year 2026
Market value
$520,000
Living area
1,476 sqft
$352 per sqft
Year built
1921
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 +31.7% from $394,800 in 2025 to $520,000 in 2026.