Cook County Value property tax analysis

527 S Oak Park Ave, Oak Park, IL 60304

4 bed / 2 bath, 2,431 sqft, built 1915, in Oak Park Appraised at $780,000 for 2026.

Cook County account 16181080220000

Appraised value
$780,000
Tax year 2026
Market value
$780,000
Living area
2,431 sqft
$321 per sqft
Year built
1915
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 +18.4% from $658,540 in 2025 to $780,000 in 2026.