Williamson Value property tax analysis

3813 Top Rock Ln, Round Rock, TX 78681

2 bathrooms, 1,880 sqft, built 1999, in R107503F - Preserve At Stone Oak - Ph 3 & 4 Appraised at $398,519 for 2026.

Williamson County account 204834

Appraised value
$398,519
Tax year 2026
Market value
$398,519
Living area
1,880 sqft
$212 per sqft
Year built
1999

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 -5.5% from $421,708 in 2025 to $398,519 in 2026.