Williamson Value property tax analysis

1901 Montclair Dr, Round Rock, TX 78664

2 bathrooms, 1,723 sqft, built 1976, in R605477I - South Park, Southern Terrace, Cushing Pa Appraised at $413,516 for 2026.

Williamson County account 127819

Appraised value
$413,516
Tax year 2026
Market value
$413,516
Living area
1,723 sqft
$240 per sqft
Year built
1976

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 -2.3% from $423,422 in 2025 to $413,516 in 2026.