Williamson Value property tax analysis

3748 Derby Trl, Round Rock, TX 78681

2 bathrooms, 1,977 sqft, built 2004, in L498506D - Village At Mayfield Appraised at $487,688 for 2026.

Williamson County account 240037

Appraised value
$487,688
Tax year 2026
Market value
$487,688
Living area
1,977 sqft
$247 per sqft
Year built
2004

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 -6.0% from $518,851 in 2025 to $487,688 in 2026.