Collin County — texaspropertytaxappeal.com

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

405 ISLEWORTH LN

This property may be over-assessed.

Estimated annual tax savings
$4,561
Based on assessment gap vs. neighborhood median
Your $/sqft
$314
Neighborhood median
$249
Appraised value
$1,187,212
% above median
25.8%
Heated area
3,786 sqft
Year built
2009

Comparable properties in your neighborhood

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

Address Sqft Year Market Value $/Sqft Diff
7604 HARBOR TOWN DR 3,993 2004 $1,443,238 $361
600 OLD COURSE CIR 4,483 2003 $1,156,022 $258 -$56

How we calculated this

We compared your property's assessed value per square foot ($314/sqft) against the median for your neighborhood ($249/sqft). Your property is assessed 25.8% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $4,561 per year in property taxes based on the Collin County effective tax rate.

We identified the 2 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 2 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
$4,561
Year 2
$9,122
Year 3
$13,683

That’s a 279× 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)