Williamson Value property tax analysis

5917 Agostino Dr, Round Rock, TX 78665

3 bed / 2 bath, 2,077 sqft, built 2020, in H121413C - Siena Appraised at $397,367 for 2026.

Williamson County account 395135

Appraised value
$397,367
Tax year 2026
Market value
$397,367
Living area
2,077 sqft
$191 per sqft
Year built
2020

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 -6.4% from $424,357 in 2025 to $397,367 in 2026.