Williamson Value property tax analysis

9 Valley Trl, Round Rock, TX 78664

2 bathrooms, 1,629 sqft, built 1998, in R575583D - Rr Rual Sub 122 & Gattis School Rd Area Appraised at $550,085 for 2026.

Williamson County account 201676

Appraised value
$550,085
Tax year 2026
Market value
$557,749
Living area
1,629 sqft
$338 per sqft
Year built
1998

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 +20.0% from $458,404 in 2025 to $550,085 in 2026.