Williamson Value property tax analysis

4021 Riardo Dr, Round Rock, TX 78665

4 bed / 3 bath, 2,902 sqft, built 2025, in H123421C - Salerno Appraised at $490,894 for 2026.

Williamson County account 489642

Appraised value
$490,894
Tax year 2026
Market value
$490,894
Living area
2,902 sqft
$169 per sqft
Year built
2025

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 +990.9% from $45,000 in 2025 to $490,894 in 2026.