Williamson Value property tax analysis

16212 Castleroy Dr, Austin, TX 78717

2 bathrooms, 1,994 sqft, built 2003, in R250401D - Avery Ranch East (Ph. 1) Appraised at $519,505 for 2026.

Williamson County account 223961

Appraised value
$519,505
Tax year 2026
Market value
$519,505
Living area
1,994 sqft
$261 per sqft
Year built
2003

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 -3.1% from $535,923 in 2025 to $519,505 in 2026.