Is 3580 W First St over-assessed?

Public Texas records put its assessment at $3,005,767 — about 15.1% above the comparable appraisals its value should track, an estimated $453,535 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 $9,978 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

3580 W First St

Prosper, 75078 · Denton County, Texas · commercial property · 35,794 sq ft · Texas Tax Code §42.26

$9,978estimated 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

Denton public rollTexas

Current assessment$3,005,767

What the comparable appraisals support$2,552,232

Estimated over-assessment$453,535 · 15.1%

Comparable basis$71/SF

Estimated tax saved / year$9,978

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 7 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

$43$3823,885 SF2003

$59$5638,601 SF2005

$73$6824,044 SF2011

$75$7137,410 SF2007

$79$7623,420 SF2017

$88$8623,790 SF2020

$91$8824,896 SF2016

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 3580 W First St 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 Denton County's own public records.

Other Denton County properties over the line

3101 Schwab Way$266,719,584 over 1916 Pga Pkwy$208,823,599 over 6801 W Park Blvd$137,977,681 over 3000 N I 35E$133,834,840 over 4211 Plano Pkwy$132,887,927 over 1450 E Mckinney St$109,054,442 over

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