Williamson Value property tax analysis

4435 Hannover Way, Round Rock, TX 78681

4 bed / 2 bath, 1,738 sqft, built 2021, in G799514C - Mayfield Ranch Appraised at $427,648 for 2026.

Williamson County account 420005

Appraised value
$427,648
Tax year 2026
Market value
$427,648
Living area
1,738 sqft
$246 per sqft
Year built
2021

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 -10.2% from $476,337 in 2025 to $427,648 in 2026.