Williamson Value property tax analysis

405 Fannin Ave, Round Rock, TX 78664

1 bathrooms, 1,392 sqft, built 1955, in R701575F - Old Town Round Rock Appraised at $408,413 for 2026.

Williamson County account 112230

Appraised value
$408,413
Tax year 2026
Market value
$408,413
Living area
1,392 sqft
$293 per sqft
Year built
1955

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 -17.7% from $496,348 in 2025 to $408,413 in 2026.