Williamson Value property tax analysis

3509 Gattis School Rd, Round Rock, TX 78664

3 bathrooms, 3,204 sqft, built 1979, in R575583D - Rr Rual Sub 122 & Gattis School Rd Area Appraised at $1,891,659 for 2026.

Williamson County account 425350

Appraised value
$1,891,659
Tax year 2026
Market value
$2,024,427
Living area
3,204 sqft
$590 per sqft
Year built
1979

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 +25.1% from $1,512,450 in 2025 to $1,891,659 in 2026.