Williamson Value property tax analysis

11518 Powder Mill Trl, Austin, TX 78750

2 bathrooms, 2,034 sqft, built 1982, in R3P5480G - Anderson Mill 12,16 - 20 - Partially In Tcad Appraised at $542,953 for 2026.

Williamson County account 131584

Appraised value
$542,953
Tax year 2026
Market value
$542,953
Living area
2,034 sqft
$267 per sqft
Year built
1982

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 +21.1% from $448,477 in 2025 to $542,953 in 2026.