Williamson Value property tax analysis

3817 Vallarta Ln, Round Rock, TX 78681

2 bathrooms, 1,821 sqft, built 2004, in L498506D - Village At Mayfield Appraised at $399,069 for 2026.

Williamson County account 255065

Appraised value
$399,069
Tax year 2026
Market value
$399,069
Living area
1,821 sqft
$219 per sqft
Year built
2004

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 -11.1% from $448,789 in 2025 to $399,069 in 2026.