Williamson Value property tax analysis

509 Karolyn Dr, Round Rock, TX 78664

1,632 sqft, built 1985, in R462475H - Egger Acres Appraised at $382,000 for 2026.

Williamson County account 117805

Appraised value
$382,000
Tax year 2026
Market value
$382,000
Living area
1,632 sqft
$234 per sqft
Year built
1985

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 -6.5% from $408,353 in 2025 to $382,000 in 2026.