Williamson Value property tax analysis

1509 E Main St, Round Rock, TX 78664

2 bathrooms, 1,478 sqft, built 1963, in R701575F - Old Town Round Rock Appraised at $387,810 for 2026.

Williamson County account 121951

Appraised value
$387,810
Tax year 2026
Market value
$387,810
Living area
1,478 sqft
$262 per sqft
Year built
1963

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 +49.5% from $259,353 in 2025 to $387,810 in 2026.