Williamson Value property tax analysis

509 Maple Run, Round Rock, TX 78664

2 bathrooms, 1,302 sqft, built 1985, in R510485H - Southcreek Appraised at $308,887 for 2026.

Williamson County account 143901

Appraised value
$308,887
Tax year 2026
Market value
$308,887
Living area
1,302 sqft
$237 per sqft
Year built
1985

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 -4.8% from $324,306 in 2025 to $308,887 in 2026.