Williamson Value property tax analysis

3506 Aquamarine Dr, Round Rock, TX 78681

4 bathrooms, 3,383 sqft, built 2009, in R147606C - Walsh Ranch Appraised at $914,424 for 2026.

Williamson County account 300536

Appraised value
$914,424
Tax year 2026
Market value
$914,424
Living area
3,383 sqft
$270 per sqft
Year built
2009

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 +6.9% from $855,338 in 2025 to $914,424 in 2026.