Collin County — texaspropertytaxappeal.com

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

6509 CASTILLE CT

This property may be over-assessed.

Estimated annual tax savings
$1,286
Based on assessment gap vs. neighborhood median
Your $/sqft
$271
Neighborhood median
$216
Appraised value
$335,812
% above median
25.7%
Heated area
1,238 sqft
Year built
1982

Comparable properties in your neighborhood

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

Address Sqft Year Market Value $/Sqft Diff
3921 ARIZONA PL 1,262 1983 $327,040 $259 -$12
6504 SPUR RANCH CT 1,238 1983 $326,825 $264 -$7
6508 SPUR RANCH CT 1,258 1983 $333,662 $265
6501 MCCORMICK RANCH CT 1,197 1983 $322,668 $270
6501 CASTILLE CT 1,336 1982 $309,159 $231
3913 SAILMAKER LN 1,340 1982 $321,269 $240

🔒 4 more comparable properties available in your evidence packet

How we calculated this

We compared your property's assessed value per square foot ($271/sqft) against the median for your neighborhood ($216/sqft). Your property is assessed 25.7% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $1,286 per year in property taxes based on the Collin 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 Collin 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
$1,286
Year 2
$2,572
Year 3
$3,858

That’s a 79× 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 (40 days left)