Williamson Value property tax analysis

3805 Castle Rock Cv, Round Rock, TX 78681

2 bathrooms, 1,423 sqft, built 2005, in R107503F - Preserve At Stone Oak - Ph 3 & 4 Appraised at $330,378 for 2026.

Williamson County account 255977

Appraised value
$330,378
Tax year 2026
Market value
$330,378
Living area
1,423 sqft
$232 per sqft
Year built
2005

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 -2.8% from $339,936 in 2025 to $330,378 in 2026.