Diamond & Flagstone area, Mckinney 75070

CAD Neighborhood N8222

Property tax protest data for the Diamond & Flagstone area, Mckinney 75070 (Neighborhood N8222) in Collin County. 290 homes, $187/sqft median.

Moderate protest signal
70% success rate · Reductions above average
What protesters saved
$20,995
County-wide avg. per successful protest (2024)
Protest success rate
70%
Based on 118,633 county-wide protests (2024)
Homes analyzed
290
Median assessment
$187/sqft
Avg: $191/sqft

Source: CCAD public records, 2024 protest season

What this means for your property

290 homes in this area were assessed at a median $187/sqft. With a 70% protest success rate, most homeowners who challenged their assessment received a reduction. If your home is assessed higher than comparable properties, you likely have grounds to protest. An evidence packet shows exactly how your assessment compares — with the specific comps and data you'd present at a hearing.

What's in the evidence packet?

5 comparable properties matched to your home, an assessment gap analysis showing where your value exceeds comps, a filing checklist for CCAD, and a hearing script you can read at your informal hearing.

How does the protest process work?

You file a protest with CCAD (online via CCAD Online Portal), attend an informal hearing where you present your evidence, and most cases settle right there. The evidence packet gives you everything you need for that hearing.

What's the deadline?

The protest deadline for Collin County is May 15. You must file before this date to protest your 2026 assessment.

Check your property

See how your home compares to 290 others in Diamond & Flagstone area, Mckinney 75070

$49 flat fee · No recurring fees — you keep 100% · 7-day money-back guarantee

📅 Deadline: May 15, 2026 (40 days left) Full refund if unused 🔒 Secure checkout 🛡 No risk — filing can’t raise your taxes

What's in your evidence packet

5 comparable properties matched to your home
Assessment gap analysis with dollar amounts
Collin County filing checklist
Hearing script you can read word-for-word
Comparable sales grid (PDF)
Step-by-step CCAD Online Portal walkthrough
In Collin County, 118,633 property owners protested last year. 70% received a reduction.

Compare similar neighborhoods in Collin County

Neighborhood Homes Median $/Sq Ft Win Rate
Watersedge & Waterside area, Mckinney 75072 78 $187 same
Duck Blind & Rutherford area, Wylie 75098 58 $187 same
Cherokee & Spring Creek area, Plano 75023 1,239 $187 same
Timbercreek & Cedar Elm area, Plano 75075 209 $187 same
Dublin Park & Mary area, Parker 75094 29 $187 same

Neighborhoods with the closest median $/sq ft to Diamond & Flagstone area, Mckinney 75070.

Top flagged properties in Diamond & Flagstone area, Mckinney 75070

Address % Above $/Sqft Est. Savings
6401 DIAMOND DR 36% $254 $2,706
6316 BROWNSTONE DR 36% $254 $2,201
3600 BLACK GOLD DR 34% $250 $2,352
6412 TAPROCK DR 32% $247 $1,921
6408 TAPROCK DR 27% $237 $2,012

Properties assessed highest above the neighborhood median.