Williamson Value property tax analysis

16200 Castletroy Dr, Austin, TX 78717

3 bed / 2 bath, 1,490 sqft, built 2004, in R250401D - Avery Ranch East (Ph. 1) Appraised at $460,707 for 2026.

Williamson County account 223964

Appraised value
$460,707
Tax year 2026
Market value
$460,707
Living area
1,490 sqft
$309 per sqft
Year built
2004

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 +0.4% from $458,764 in 2025 to $460,707 in 2026.