Dallas County — texaspropertytaxappeal.com

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

509 CASTLEROCK CIR

This property may be over-assessed.

Estimated annual tax savings
$1,330
Based on assessment gap vs. neighborhood median
Your $/sqft
$194
Neighborhood median
$163
Appraised value
$405,630
% above median
18.8%
Heated area
2,093 sqft
Year built
1997

Comparable properties in your neighborhood

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

Address Sqft Year Market Value $/Sqft Diff
4540 RUGBY LN 2,100 1997 $353,380 $168 -$26
4545 JOUSTING LN 2,107 1997 $370,110 $176 -$18
4564 JOUSTING LN 2,112 1997 $342,780 $162
4520 RUGBY LN 2,059 1997 $375,390 $182
534 BROADSWORD LN 1,994 1999 $381,850 $191
502 CASTLEROCK CIR 2,146 1997 $366,950 $171

🔒 4 more comparable properties available in your evidence packet

How we calculated this

We compared your property's assessed value per square foot ($194/sqft) against the median for your neighborhood ($163/sqft). Your property is assessed 18.8% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $1,330 per year in property taxes based on the Dallas 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 Dallas 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
$1,330
Year 2
$2,660
Year 3
$3,990

That’s a 81× 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)