Williamson Value property tax analysis

6220 Mantalcino Dr, Round Rock, TX 78665

3 bed / 2 bath, 1,431 sqft, built 2019, in H121413C - Siena Appraised at $306,499 for 2026.

Williamson County account 370843

Appraised value
$306,499
Tax year 2026
Market value
$306,499
Living area
1,431 sqft
$214 per sqft
Year built
2019

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 -4.9% from $322,268 in 2025 to $306,499 in 2026.