Case Study
Strategic Valuation Reset: Harwin Drive Portfolio
A $1,583,697 reduction through binding arbitration under Texas Tax Code §41A, correcting years of systemic overassessment on the Harwin Drive corridor in Houston.
Quick Insights
- Property
- Two contiguous commercial parcels, Harwin Drive, Houston
- Prior Firm Result
- Values climbed every year despite annual protests
- Champions Result
- $1,583,697 reduction (29.8% decrease)
- 2025 Tax Savings
- $34,841 direct savings
- Methodology
- Independent cost approach (Marshall & Swift) + binding arbitration under Texas Tax Code §41A
The Situation
A commercial property owner along the Harwin Drive corridor in Houston came to Champions Property Tax in 2025 with a portfolio that had been overassessed for years. The district's values kept climbing. The previous firm kept filing protests. And nothing meaningful ever changed.
The frustration started in 2022, when the district spiked one parcel from roughly $1.58 million to over $2.59 million and the other from $1.88 million to over $2.45 million. Combined, the portfolio jumped more than $1.5 million in a single year. The values essentially stayed at those elevated levels for the next three years. The prior firm never recovered the ground that was lost.
The portfolio, two contiguous parcels operating as a single commercial property, carried a combined taxable value of over $5.3 million by 2025. The prior firm had been filing protests and getting reductions at the ARB level. Some years, the combined reductions exceeded $600,000. But they never took the fight beyond the Appraisal Review Board. They never filed for binding arbitration. They never challenged the district's valuation model. They trimmed the notice and stopped.
Operator Logic
Annual reductions that don't change the trajectory aren't savings. They're a receipt. If your assessed value keeps climbing despite protests, your consultant isn't solving the structural problem.
What We Found
When we opened the file, the problems weren't hidden. They were sitting in plain sight. The previous firm was getting reductions at the hearing level, but they were surface-level wins. Nobody had looked underneath the district's valuation model to see what was actually driving the numbers.
The district had split this single economic unit into two different neighborhoods and assigned two different market areas. Same owner. Same operation. Same parking lot. Two completely different valuation models applied to contiguous parcels that function as one property.
On top of that, the district's depreciation was internally inconsistent. Buildings of similar age and construction were assigned “percent good” factors ranging from 46% to 65%, with no study, no explanation, and no uniformity. Their cost model was a hybrid variation of a nationally recognized system with undisclosed local modifiers, no calibration data, no ratio-study support, and no explanation of how or why it deviated from the standard.
Their sales evidence was a raw database export: unadjusted, unscreened, unconfirmed, with no time adjustments, no location adjustments, no analysis, and no conclusion. It wasn't a sales comparison approach. It was a data dump.
What We Did
We developed an independent cost approach for each parcel using Marshall & Swift, a nationally recognized commercial valuation system. Every input came directly from the district's own property records: land size, building square footage, construction classifications, actual year built, effective age, and obsolescence categories.
No unsupported assumptions. No generic multipliers. No undisclosed modifiers. The district's own data, run through a transparent and replicable methodology.
We then moved the dispute into binding arbitration under Texas Tax Code §41A. The Appraisal Review Board process hasn't produced meaningful commercial results in Harris County for years. Real reductions happen in the second phase. That's where we operate.
The Result
In 2025, the district noticed the portfolio at a combined $5,695,577. The ARB reduced that to $5,322,329. We then took the case to binding arbitration under Texas Tax Code Section 41A, where the arbitrator awarded a combined value of $3,738,632. That is a $1,583,697 reduction from the ARB-certified values, a 29.8% decrease. At the applicable tax rate, that translates to $34,841 in direct tax savings for the 2025 tax year.
Portfolio Assessed Value Trajectory
| Year | Firm | Combined Final Value | Change |
|---|---|---|---|
| 2023 | Prior Firm | $5,044,483 | Baseline |
| 2024 | Prior Firm | $5,070,294 | +$25,811 |
| 2025 (ARB) | Prior Firm Exit | $5,322,329 | +$252,035 |
| 2025 (Arbitration) | Champions | $3,738,632 | -$1,583,697 |
Operator Logic
The prior firm's annual reductions averaged over $400,000 in combined notice-to-final reductions. But the portfolio's taxable value still went up every single year. Getting a reduction and changing the trajectory are two very different outcomes.
What's Next
We're not done. The 2025 result was significant, but we haven't reached our target valuation. The district has already noticed these properties back up to prior-year notice values plus incremental increases for 2026. That's how the system works. An arbitration award doesn't permanently reset the anchor. The district comes back every year.
We'll be filing again in 2026 to push these values further toward where they belong. The 2025 win gave us a stronger position to fight from, but the work is ongoing. This isn't a one-year engagement. It's a multi-year campaign to bring this portfolio's assessed value in line with where it should have been all along.
The Difference
Volume shops process files. They load accounts into a system, generate a protest, show up at the hearing, take what the district offers, and move on to the next one. That's not incompetence. It's a business model built on throughput. But throughput doesn't reward digging into a property's cost schedule, cross-referencing the district's depreciation against its own records, or pulling apart a land model that hasn't made sense in years. That work doesn't scale. It requires someone who has spent decades evaluating commercial properties and understands what the district's data is actually saying.
“The prior firm filed protests for years and got reductions. But they never examined the district's model closely enough to find the structural problems underneath it, and they never took the dispute beyond the hearing room. When depth showed up, $1.58 million came off the table in a single year.”
Frequently Asked Questions
What is binding arbitration under Texas Tax Code §41A?
Binding arbitration under Texas Tax Code Section 41A is a dispute resolution process available to property owners who disagree with their appraised value after the Appraisal Review Board (ARB) hearing. For properties appraised at $5 million or less, owners can request a single arbitrator from the Comptroller's registry to make a final, binding determination of value. This process often produces larger reductions than the ARB alone, particularly when supported by strong independent evidence.
What is the Marshall & Swift valuation system?
Marshall & Swift (now Marshall Valuation Service by CoreLogic) is a nationally recognized commercial property valuation system used to estimate replacement and reproduction costs for buildings. It provides standardized cost data by construction type, quality, and location. Property tax consultants use Marshall & Swift to develop independent cost approaches that can challenge appraisal district valuations, particularly when the district's own cost model contains undisclosed modifiers or inconsistent depreciation schedules.
How long does property tax arbitration take in Harris County, Texas?
The arbitration process typically begins after the ARB hearing and can take several months from filing to resolution. There is a settlement window during which the property owner and appraisal district can negotiate. If no settlement is reached, the arbitrator schedules a hearing. The entire process from ARB decision to arbitration award often spans 3-6 months, depending on caseload and scheduling. The arbitrator's decision is final and binding on both parties.