Collin County — texaspropertytaxappeal.com

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

4121 DONNINGTON DR

This property may be over-assessed.

Estimated annual tax savings
$2,171
Based on assessment gap vs. neighborhood median
Your $/sqft
$261
Neighborhood median
$212
Appraised value
$633,052
% above median
23.0%
Heated area
2,429 sqft
Year built
1989

Comparable properties in your neighborhood

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

Address Sqft Year Market Value $/Sqft Diff
4221 DONNINGTON DR 2,429 1989 $472,000 $194 -$66
2512 ROSEHILL LN 2,429 1989 $603,700 $249 -$12
4117 DONNINGTON DR 2,576 1989 $592,500 $230
2517 ROSEHILL LN 2,576 1989 $595,595 $231
4217 DONNINGTON DR 2,576 1989 $611,156 $237
4212 CASTLEMAINE LN 2,296 1991 $551,287 $240

🔒 4 more comparable properties available in your evidence packet

How we calculated this

We compared your property's assessed value per square foot ($261/sqft) against the median for your neighborhood ($212/sqft). Your property is assessed 23.0% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $2,171 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
$2,171
Year 2
$4,342
Year 3
$6,513

That’s a 133× 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)