Williamson Value property tax analysis

510 Heather Dr, Round Rock, TX 78664

2 bathrooms, 1,770 sqft, built 1977, in R462475H - Egger Acres Appraised at $428,667 for 2026.

Williamson County account 117989

Appraised value
$428,667
Tax year 2026
Market value
$428,667
Living area
1,770 sqft
$242 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 -3.3% from $443,067 in 2025 to $428,667 in 2026.

Recent sale history

Recent transfers help establish whether the county value is tracking real market behavior.

  • $429,000 sale recorded on May-1-2026