Williamson Value property tax analysis

3803 Sebastian Cv, Round Rock, TX 78681

2 bathrooms, 2,241 sqft, built 2005, in L498506D - Village At Mayfield Appraised at $474,017 for 2026.

Williamson County account 245902

Appraised value
$474,017
Tax year 2026
Market value
$474,017
Living area
2,241 sqft
$212 per sqft
Year built
2005

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 -8.2% from $516,439 in 2025 to $474,017 in 2026.