Williamson Value property tax analysis

3510 Aquamarine Dr, Round Rock, TX 78681

3 bathrooms, 3,896 sqft, built 2009, in R147606C - Walsh Ranch Appraised at $1,021,288 for 2026.

Williamson County account 300535

Appraised value
$1,021,288
Tax year 2026
Market value
$1,021,288
Living area
3,896 sqft
$262 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 +7.5% from $950,051 in 2025 to $1,021,288 in 2026.