Is 403 Main Ave W, Round Rock, Tx 78664 over-assessed?

Public Texas records put its assessment at $739,822 — about 71.7% above the comparable appraisals its value should track, an estimated $530,588 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 $11,673 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

403 Main Ave W, Round Rock, Tx 78664

Round Rock, 78664 · Williamson County, Texas · commercial property · 826 sq ft · Texas Tax Code §42.26

$11,673estimated 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

Williamson public rollTexas

Current assessment$739,822

What the comparable appraisals support$209,234

Estimated over-assessment$530,588 · 71.7%

Comparable basis$253/SF

Estimated tax saved / year$11,673

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

$24$23720 SF—

$66$67856 SF1913

$73$73868 SF1909

$167$159800 SF1900

$203$203800 SF—

$300$304736 SF1915

$319$315720 SF—

$337$318760 SF1900

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 403 Main Ave W, Round Rock, Tx 78664 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 Williamson County's own public records.

Other Williamson County properties over the line

3001 Kalahari Blvd, Round Rock, Tx 78665$398,569,533 over 7700 Parmer Ln, Austin, Tx 78729$289,260,240 over 9835 N Lake Creek Pkwy, Austin, Tx 78717$209,442,095 over 1555 University Blvd, Round Rock, Tx 78665$117,745,277 over 14231 N 183A Toll Rd, Austin, Tx 78717$110,546,239 over 2300 Greenlawn Blvd, Round Rock, Tx 78664$94,380,052 over

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