Williamson Value property tax analysis

3757 Castle Rock Dr, Round Rock, TX 78681

3 bed / 2 bath, 1,275 sqft, built 2003, in R107503F - Preserve At Stone Oak - Ph 3 & 4 Appraised at $285,280 for 2026.

Williamson County account 232579

Appraised value
$285,280
Tax year 2026
Market value
$285,280
Living area
1,275 sqft
$224 per sqft
Year built
2003

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 -9.5% from $315,396 in 2025 to $285,280 in 2026.