Williamson County — texaspropertytaxappeal.com

Protest Deadline: May 15, 2026 (40 days left)

3821 TREVINO DR, ROUND ROCK, TX 78664

This property may be over-assessed.

Estimated annual tax savings
$7,748
Based on assessment gap vs. neighborhood median
Your $/sqft
$312
Neighborhood median
$234
Appraised value
$1,380,152
% above median
33.4%
Heated area
4,426 sqft
Year built
1999

Comparable properties in your neighborhood

These homes are similar to yours and assessed lower per square foot.

Address Sqft Year Market Value $/Sqft Diff
3904 PALMER DR, ROUND ROCK, TX 78664 4,574 1999 $987,742 $216 -$96
3813 TREVINO DR, ROUND ROCK, TX 78664 4,568 1998 $1,029,675 $225 -$86
3809 TREVINO DR, ROUND ROCK, TX 78664 4,665 1998 $1,049,955 $225
3501 PALMER CV, ROUND ROCK, TX 78664 4,473 1999 $964,638 $216
3804 TREVINO DR, ROUND ROCK, TX 78664 4,377 1999 $928,268 $212
3807 TREVINO DR, ROUND ROCK, TX 78664 4,065 1998 $970,291 $239

🔒 4 more comparable properties available in your evidence packet

How we calculated this

We compared your property's assessed value per square foot ($312/sqft) against the median for your neighborhood ($234/sqft). Your property is assessed 33.4% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $7,748 per year in property taxes based on the Williamson County effective tax rate.

We identified the 6 most comparable homes — matched on square footage, age, quality, and location — all assessed at lower $/sqft values.

What you'll receive

📋

Filing Guide

Your exact deadline, required forms, and step-by-step Williamson County filing process

📊

Evidence Packet

Full comparable sales analysis with 6 properties, assessment discrepancy calculation, and maps

✉️

Cover Letter

Pre-written appeal letter with hearing talking points, ready to sign and submit

This decision compounds

Year 1
$7,748
Year 2
$15,496
Year 3
$23,244

That’s a 474× return on $49

Get your protest packet

One-time fee · No recurring charges · You keep 100% of your savings

Secure checkout via Stripe · 7-day money-back guarantee

Protest deadline: May 15, 2026 (40 days left)