Williamson Value property tax analysis

12117 Grey Rock Ln, Austin, TX 78750

2 bathrooms, 1,448 sqft, built 1977, in R3P5480G - Anderson Mill 12,16 - 20 - Partially In Tcad Appraised at $353,105 for 2026.

Williamson County account 120102

Appraised value
$353,105
Tax year 2026
Market value
$353,105
Living area
1,448 sqft
$244 per sqft
Year built
1977

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 -4.7% from $370,712 in 2025 to $353,105 in 2026.