Collin County — texaspropertytaxappeal.com

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

6300 CASTLE ROCK CIR

This property may be over-assessed.

Estimated annual tax savings
$2,772
Based on assessment gap vs. neighborhood median
Your $/sqft
$244
Neighborhood median
$189
Appraised value
$637,376
% above median
29.2%
Heated area
2,617 sqft
Year built
2006

Comparable properties in your neighborhood

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

Address Sqft Year Market Value $/Sqft Diff
6301 WIND SONG DR 2,635 2006 $586,000 $222 -$21
1524 TANGLE RIDGE DR 2,662 2006 $589,343 $221 -$22
1521 SHENANDOAH DR 2,711 2006 $570,885 $211
1200 FAIR OAKS DR 2,667 2006 $548,609 $206
1500 TANGLE RIDGE DR 2,721 2006 $568,643 $209
6704 MISSION RDG 2,615 2006 $504,000 $193

🔒 4 more comparable properties available in your evidence packet

How we calculated this

We compared your property's assessed value per square foot ($244/sqft) against the median for your neighborhood ($189/sqft). Your property is assessed 29.2% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $2,772 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
$2,772
Year 2
$5,544
Year 3
$8,316

That’s a 170× 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)