Most states make diminished value claims an uphill battle. Louisiana is not most states. When it comes to recovering the lost value of your vehicle after an accident, Louisiana has one of the clearest and most driver-friendly legal frameworks in the country. Here’s exactly what the law says — in plain English — and what it means for your claim.
The Statute: La. R.S. 9:2800.17
Louisiana Revised Statute 9:2800.17 is the primary law governing diminished value claims in Louisiana. It explicitly allows vehicle owners to recover diminished value in third-party claims — meaning claims against the at-fault driver’s insurance company.
The key language is straightforward: if you can prove that after repairs, your vehicle’s fair market value is less than its pre-loss value, you are entitled to recover that difference. The law doesn’t make you fight for the right to make the claim — it already grants it. What you have to do is prove the amount.
The Civil Code backbone for this right is Louisiana Civil Code Article 2315 — the general tort principle that requires full repair of all damages caused. Diminished value is a damage. Louisiana law treats it as one.
The Foundational Case: Orillac v. Solomon
The Louisiana Fourth Circuit Court of Appeal established in Orillac v. Solomon (2000) that diminished value is recoverable property damage in tort claims. This case set the precedent that Louisiana courts have followed ever since. When you file a diminished value claim in Louisiana, you’re standing on more than 25 years of established case law.
How Louisiana Measures Diminished Value
Louisiana uses a pure market-based measure for diminished value. The formula is simple:
Pre-accident fair market value − Post-repair fair market value (with accident disclosure) = Diminished Value
There is no statutory formula — and that matters. Insurance companies sometimes apply what’s called the “17c formula” — a standardized calculation that applies a base loss of value percentage and then adjusts it based on damage and mileage. Louisiana courts have specifically criticized this approach as arbitrary and not reflective of actual market conditions.
What Louisiana courts want to see is real-world market evidence — what buyers are actually paying for comparable vehicles with and without accident history in your specific market. That’s a much higher standard than a formula — and it’s one that consistently produces larger recoveries for claimants who come prepared.
What You Have to Prove — The Burden of Evidence
Louisiana requires proof by a preponderance of the evidence — meaning more likely true than not. Here’s what courts accept as strong evidence:
- Pre-loss value evidence: Market valuation reports, dealer statements, comparable listings, NADA and KBB valuations
- Post-repair condition evidence: Repair invoices, damage severity documentation, photographs
- Professional diminished value appraisal: The most important piece. Must be vehicle-specific, based on local Louisiana market data, and compare pre-loss vs. post-repair value
- Market-based comparables: Comparable sales showing the price difference between clean-history and accident-history vehicles, dealer trade-in differences, auction data
What Louisiana courts do NOT favor: formula-based models and unsupported percentage reductions. If your appraisal is based on a generic formula rather than real market data, it will not hold up. This is why the quality of your appraisal matters so much in Louisiana.
What This Means for Your Claim
Louisiana is one of the best states in the country to file a diminished value claim — but only if you come prepared. The law is on your side. The case precedent is on your side. What determines whether you recover full value is the quality of the evidence you bring.
An independent, professional appraisal backed by real Louisiana market data is the single most important thing you can have in your corner. It’s what separates a successful claim from one that gets dismissed with a lowball counteroffer.
How Collision Safety Consultants Can Help
At Collision Safety Consultants of Southeastern Louisiana, we prepare independent diminished value appraisals that meet the evidentiary standard Louisiana courts and insurance companies actually respect. Vehicle-specific, market-data-driven, and built to hold up under scrutiny.
We offer a free consultation to evaluate your situation before you commit to anything. If we don’t believe your claim is strong enough to justify the cost of hiring us, we’ll tell you straight.
Call us at 985-326-1886 or reach out through our website. Louisiana law already gave you the right. We help you use it.
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