Williamson Value property tax analysis

4126 Van Ness Ave, Round Rock, TX 78681

2 bathrooms, 1,891 sqft, built 2017, in G799514C - Mayfield Ranch Appraised at $421,455 for 2026.

Williamson County account 370448

Appraised value
$421,455
Tax year 2026
Market value
$421,455
Living area
1,891 sqft
$223 per sqft
Year built
2017

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 -6.1% from $448,950 in 2025 to $421,455 in 2026.