Williamson Value property tax analysis

421 Southern Cross Dr, Austin, TX 78717

2 bathrooms, 3,658 sqft, built 2011, in R302609C - Highland Horizon Appraised at $1,021,023 for 2026.

Williamson County account 303652

Appraised value
$1,021,023
Tax year 2026
Market value
$1,021,023
Living area
3,658 sqft
$279 per sqft
Year built
2011

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 +9.7% from $931,045 in 2025 to $1,021,023 in 2026.