Williamson Value property tax analysis

306 Black St, Round Rock, TX 78664

2 bed / 2 bath, 1,731 sqft, built 2018, in R701575F - Old Town Round Rock Appraised at $595,482 for 2026.

Williamson County account 129690

Appraised value
$595,482
Tax year 2026
Market value
$605,478
Living area
1,731 sqft
$344 per sqft
Year built
2018

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 +10.0% from $541,347 in 2025 to $595,482 in 2026.