Cook County Value property tax analysis

3117 Oak Park Ave, Berwyn, IL 60402

5 bed / 3 bath, 9,657 sqft, built 1964, in Berwyn Appraised at $779,310 for 2026.

Cook County account 16312000050000

Appraised value
$779,310
Tax year 2026
Market value
$779,310
Living area
9,657 sqft
$81 per sqft
Year built
1964
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 +122.4% from $350,480 in 2025 to $779,310 in 2026.