Williamson Value property tax analysis

3500 Shellcastle Ln, Round Rock, TX 78681

2 bathrooms, 2,019 sqft, built 2007, in L498506D - Village At Mayfield Appraised at $425,958 for 2026.

Williamson County account 261006

Appraised value
$425,958
Tax year 2026
Market value
$425,958
Living area
2,019 sqft
$211 per sqft
Year built
2007

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 -11.0% from $478,561 in 2025 to $425,958 in 2026.