Williamson Value property tax analysis

3912 Hillside Dr, Round Rock, TX 78681

2 bathrooms, 1,410 sqft, built 1979, in R210480H - Brushy Creek Appraised at $411,400 for 2026.

Williamson County account 114569

Appraised value
$411,400
Tax year 2026
Market value
$411,400
Living area
1,410 sqft
$292 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 +0.4% from $409,874 in 2025 to $411,400 in 2026.

Recent sale history

Recent transfers help establish whether the county value is tracking real market behavior.

  • $389,000 sale recorded on January-15-2026