Grayson County — texaspropertytaxappeal.com

Protest Deadline: May 15, 2026 (41 days left)

509 THOMPSON DR

This property may be over-assessed.

Estimated annual tax savings
$2,077
Based on assessment gap vs. neighborhood median
Your $/sqft
$230
Neighborhood median
$179
Appraised value
$429,525
% above median
28.4%
Heated area
1,864 sqft
Year built
2018

Comparable properties in your neighborhood

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

Address Sqft Year Market Value $/Sqft Diff
513 THOMPSON DR 1,865.8 2018 $408,688 $219 -$11
324 THOMPSON 1,865.8 2017 $428,285 $230 -$1
312 THOMPSON DR 1,943.1 2018 $409,969 $211
525 THOMPSON DR 1,909 2020 $432,500 $227
1705 BEASLEY ST 1,873.2 2018 $354,157 $189
520 MILLSAP DR 1,873.2 2018 $359,530 $192

🔒 4 more comparable properties available in your evidence packet

How we calculated this

We compared your property's assessed value per square foot ($230/sqft) against the median for your neighborhood ($179/sqft). Your property is assessed 28.4% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $2,077 per year in property taxes based on the Grayson 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 Grayson 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
$2,077
Year 2
$4,154
Year 3
$6,231

That’s a 127× return on $49

Get your protest packet

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

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Protest deadline: May 15, 2026 (41 days left)