Williamson Value property tax analysis

861 Whitetail Dr, Round Rock, TX 78681

3 bed / 2 bath, 1,764 sqft, built 2020, in G799514C - Mayfield Ranch Appraised at $417,555 for 2026.

Williamson County account 405033

Appraised value
$417,555
Tax year 2026
Market value
$417,555
Living area
1,764 sqft
$237 per sqft
Year built
2020

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 -10.2% from $465,167 in 2025 to $417,555 in 2026.