Williamson Value property tax analysis

7921 Massa Dr, Round Rock, TX 78665

2 bathrooms, 1,537 sqft, built 2017, in H121413C - Siena Appraised at $342,965 for 2026.

Williamson County account 368823

Appraised value
$342,965
Tax year 2026
Market value
$342,965
Living area
1,537 sqft
$223 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 -4.2% from $358,115 in 2025 to $342,965 in 2026.