Williamson Value property tax analysis

5645 Sacco St, Round Rock, TX 78665

2 bathrooms, 2,040 sqft, built 2017, in H121413C - Siena Appraised at $388,326 for 2026.

Williamson County account 350903

Appraised value
$388,326
Tax year 2026
Market value
$388,326
Living area
2,040 sqft
$190 per sqft
Year built
2017

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 -6.1% from $413,706 in 2025 to $388,326 in 2026.