Williamson Value property tax analysis

18 Timberline Dr, Round Rock, TX 78665

1 bathrooms, 1,697 sqft, built 1979, in R427578G - Hidden Acres & Sec 2 Appraised at $389,765 for 2026.

Williamson County account 120364

Appraised value
$389,765
Tax year 2026
Market value
$389,765
Living area
1,697 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 -5.9% from $414,216 in 2025 to $389,765 in 2026.