Is 660 Data Dr , Plano, Tx 75075 over-assessed?

Public Texas records put its assessment at $23,262,404 — about 48.8% above the comparable appraisals its value should track, an estimated $11,347,536 over-assessment. We verify it by hand before saying you have a case.

How much could a property tax appeal save on this property?

An estimated $249,646 per year, using an estimated Texas composite millage rate applied to the over-assessment. Actual savings depend on the final reduction.

What does it cost to appeal?

Nothing upfront. WinningAppeals is paid only if your value comes down — the founding-year rate is 10% of your first-year savings. If the value doesn't move, you owe nothing.

Possible over-assessment

660 Data Dr , Plano, Tx 75075

Plano, 75075 · Collin County, Texas · commercial property · 96,600 sq ft · Texas Tax Code §42.26

$249,646estimated overpaid in property tax / year

The public records suggest this property may be over-assessed, but the comparison is wide enough that we verify it by hand — free, with no obligation — before saying you have a case.

What the public records show

Collin public rollTexas

Current assessment$23,262,404

What the comparable appraisals support$11,914,868

Estimated over-assessment$11,347,536 · 48.8%

Comparable basis$123/SF

Estimated tax saved / year$249,646

Straight from the public Texas roll. The estimated saving applies an estimated composite millage to the over-assessment. We adjust comparables for size, age, and location before we say a word about your property — and we never name owners.

The comparable basis

The 8 comparable appraisals behind the number

Each comparable is adjusted toward this property for size and age, then we take the median. Owners are never named — only the public assessment figures matter.

Comparable assessment $/SFAdjusted $/SFSizeBuilt

$80$8095,513 SF2001

$88$8794,047 SF2001

$96$97100,000 SF2001

$114$11499,414 SF2001

$121$121102,293 SF2001

$126$12597,770 SF2000

$127$12794,281 SF2002

$130$13091,579 SF2001

Why this is the lever

Texas Tax Code §42.26

Under §42.26, if a property is appraised above the median appraised value of a reasonable number of comparable properties (adjusted for size, age, and location), the value must be brought down to that median.

How a Texas commercial property tax appeal works →

Your free review

See the full comparable analysis and start your review

The number above is free. Enter your email and we'll send the full breakdown for 660 Data Dr , Plano, Tx 75075 and tell you, with no obligation, whether it's worth filing. A licensed Texas agent handles everything from there. You pay only if your value comes down.

Nothing due unless we lower your bill.
A licensed Texas agent files and represents you.
Built from Collin County's own public records.

Other Collin County properties over the line

300 W Renner Rd , Richardson, Tx 75080$640,472,708 over Parcel 366712$453,517,193 over 8181 Communications Pkwy , Plano, Tx 75024$372,485,814 over 6565 Headquarters Dr , Plano, Tx 75024$343,253,514 over 7609 Preston Rd , Plano, Tx 75024$323,014,573 over 6501 Legacy Dr , Plano, Tx 75024$294,155,386 over

All Collin County over-assessments →Texas commercial property tax appeals →