Williamson Value property tax analysis

19 Hidden Acres Dr, Round Rock, TX 78665

2 bathrooms, 2,067 sqft, built 1979, in R427578G - Hidden Acres & Sec 2 Appraised at $475,646 for 2026.

Williamson County account 120349

Appraised value
$475,646
Tax year 2026
Market value
$475,646
Living area
2,067 sqft
$230 per sqft
Year built
1979

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 -8.8% from $521,503 in 2025 to $475,646 in 2026.