Williamson Value property tax analysis

521 Chisholm Valley Dr, Round Rock, TX 78681

2 bathrooms, 1,202 sqft, built 1977, in R332479H - Chisholm Valley & Northridge Acres & Willow Run Appraised at $301,278 for 2026.

Williamson County account 116175

Appraised value
$301,278
Tax year 2026
Market value
$301,278
Living area
1,202 sqft
$251 per sqft
Year built
1977

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 -5.7% from $319,427 in 2025 to $301,278 in 2026.