Williamson Value property tax analysis

4709 Knollwood Cir, Round Rock, TX 78681

2 bathrooms, 2,170 sqft, built 1980, in L580D75C - Leander Sam Bass Area Appraised at $886,127 for 2026.

Williamson County account 91145

Appraised value
$886,127
Tax year 2026
Market value
$886,127
Living area
2,170 sqft
$408 per sqft
Year built
1980

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 +8.9% from $814,049 in 2025 to $886,127 in 2026.