Cook County Value property tax analysis

42 Keystone Ave River Forest, IL 60305

4 bed / 2 bath, 1,905 sqft, built 1919, in River Forest Appraised at $750,000 for 2026.

Cook County account 15123180120000

Appraised value
$750,000
Tax year 2026
Market value
$750,000
Living area
1,905 sqft
$394 per sqft
Year built
1919
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 +19.9% from $625,440 in 2025 to $750,000 in 2026.