Williamson Value property tax analysis

3736 Derby Trl, Round Rock, TX 78681

2 bathrooms, 1,830 sqft, built 2004, in L498506D - Village At Mayfield Appraised at $415,035 for 2026.

Williamson County account 240039

Appraised value
$415,035
Tax year 2026
Market value
$415,035
Living area
1,830 sqft
$227 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 -8.6% from $454,038 in 2025 to $415,035 in 2026.