Is 5300 State Hwy 121 , Plano, Tx 75024 over-assessed?

Public Texas records put its assessment at $6,732,312 — about 32.0% above the comparable appraisals its value should track, an estimated $2,155,320 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 $47,417 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.

Over-assessed vs. comparables

5300 State Hwy 121 , Plano, Tx 75024

Plano, 75024 · Collin County, Texas · commercial property · 10,726 sq ft · Texas Tax Code §42.26

$47,417estimated overpaid in property tax / year

This property's assessment sits above the comparable basis its tax bill should follow — a strong opening for an appeal.

What the public records show

Collin public rollTexas

Current assessment$6,732,312

What the comparable appraisals support$4,576,992

Estimated over-assessment$2,155,320 · 32.0%

Comparable basis$427/SF

Estimated tax saved / year$47,417

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

$200$1989,979 SF2020

$349$34211,795 SF2015

$352$35811,345 SF2023

$405$39110,857 SF2014

$427$4218,253 SF2023

$441$4338,168 SF2022

$542$5278,870 SF2019

$551$5478,833 SF2023

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 5300 State Hwy 121 , Plano, Tx 75024 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 →