Williamson Value property tax analysis

15300 Sunningdale St, Austin, TX 78717

3 bathrooms, 4,290 sqft, built 2003, in L572601A - Avery Estates & Golf Club @ Avery Ranch Appraised at $1,237,305 for 2026.

Williamson County account 239539

Appraised value
$1,237,305
Tax year 2026
Market value
$1,237,305
Living area
4,290 sqft
$288 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 +9.8% from $1,126,526 in 2025 to $1,237,305 in 2026.