Williamson Value property tax analysis

4128 Rocky Mountain Trl, Round Rock, TX 78681

2 bathrooms, 1,834 sqft, built 2006, in R107503F - Preserve At Stone Oak - Ph 3 & 4 Appraised at $377,494 for 2026.

Williamson County account 246161

Appraised value
$377,494
Tax year 2026
Market value
$377,494
Living area
1,834 sqft
$206 per sqft
Year built
2006

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 -4.3% from $394,391 in 2025 to $377,494 in 2026.