Williamson Value property tax analysis

15 Hidden Acres Dr, Round Rock, TX 78665

3 bed / 2 bath, 3,302 sqft, built 2020, in R427578G - Hidden Acres & Sec 2 Appraised at $783,225 for 2026.

Williamson County account 120351

Appraised value
$783,225
Tax year 2026
Market value
$783,225
Living area
3,302 sqft
$237 per sqft
Year built
2020

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 -6.7% from $839,290 in 2025 to $783,225 in 2026.