Williamson Value property tax analysis

9421 Castle Pines Dr, Austin, TX 78717

2 bathrooms, 1,910 sqft, built 2005, in R251501D - Avery Ranch South Appraised at $541,855 for 2026.

Williamson County account 255703

Appraised value
$541,855
Tax year 2026
Market value
$541,855
Living area
1,910 sqft
$284 per sqft
Year built
2005

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 +9.1% from $496,810 in 2025 to $541,855 in 2026.