Cook County Value property tax analysis

420 N Grove Ave, Oak Park, IL 60302

4 bed / 2 bath, 2,421 sqft, built 1898, in Oak Park Appraised at $1,140,000 for 2026.

Cook County account 16071050040000

Appraised value
$1,140,000
Tax year 2026
Market value
$1,140,000
Living area
2,421 sqft
$471 per sqft
Year built
1898
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 +32.6% from $860,000 in 2025 to $1,140,000 in 2026.