A homeowner builds their house, entrusting the construction to a contractor, who in turn delegates the plumbing to a tradesman. Years later, the pipes leak. Can the homeowner sue the plumber directly with whom they have signed no contract?
This seemingly simple question has divided French courts for years. The Besse ruling, delivered on July 12, 1991, by the Plenary Assembly of the Court of Cassation, answered it with a clarity that still structures civil liability law.
Chains of Contracts and Absence of Direct Contractual Link
To understand the implications of the Besse ruling, one must first grasp what is known as a chain of contracts. Imagine three people: A hires B, and B hires C. A and B are bound by a contract. B and C are as well. However, A and C have no contract between them.
In law, this absence of a direct link poses a concrete problem. If C performs their service poorly and A suffers damage, on what basis can A seek compensation from C? Two options exist: contractual liability (which requires a contract) or tort liability (which does not).
Before 1991, the case law was not uniform. Some chambers of the Court of Cassation accepted a contractual action in chains of contracts involving a transfer of ownership. The first civil chamber, in a ruling from February 7, 1986, extended this logic to all chains of contracts, even those concerning simple service provisions.
The third civil chamber, however, refused this extension. An open conflict existed within the Court of Cassation itself, making the applicable law unpredictable for litigants. You can learn more about the Besse ruling and how it resolved this disagreement between the chambers.
Tort Basis Imposed by the Besse Ruling Between Subcontractor and Project Owner
The facts of the Besse case are typical of construction litigation. A project owner entrusts the construction of their house to a main contractor, who subcontracts the plumbing to a tradesman. More than a decade after the completion of the work, defects appear in the plumbing installations.
The project owner sues the main contractor and the subcontractor plumber. The Nancy Court of Appeal holds that the project owner can act against the subcontractor on a contractual basis, as a “substituted debtor” of the main debtor.
The Plenary Assembly overturns this decision. Its reasoning can be summarized in one decisive sentence: the subcontractor is not contractually bound to the project owner. There is no contract between them, thus no contractual action is admissible. The project owner seeking compensation must act on the basis of tort liability, meaning they must prove a fault, damage, and a causal link according to common law rules.
This reasoning is based on a fundamental principle of French law: the relative effect of contracts. A contract creates obligations only between the parties who signed it. It cannot benefit or harm a third party, except in cases provided by law.
The Key Distinction Between Transferring and Non-Transferring Chains
The Besse ruling did not challenge previous case law on transferring chains of ownership (sale of a good that passes from manufacturer to wholesaler, then to retailer, and finally to consumer). In these chains, the contractual action “travels” with the sold item.
The rule established by Besse specifically concerns non-transferring chains of contracts, such as successive construction contracts. When there is no transfer of ownership of a good, there is no transmission of the contractual action. The third party must therefore act on the tort basis.
- Transferring chain (successive sale of a good): the final buyer has a contractual action against the manufacturer, as the action is transferred with the ownership of the item.
- Non-transferring chain (successive construction contracts): the project owner can only act on a tort basis against the subcontractor, due to the lack of a direct contractual link.
- Practical consequence: the burden of proof differs, and the clauses of the contract between the contractor and the subcontractor are not directly enforceable by the project owner.
Recent Developments in Case Law After the Besse Ruling
The Besse ruling established a framework, but the law is not static. Two recent decisions have significantly extended and nuanced its logic.
In 2006, the Boot Shop ruling (Plenary Assembly, October 6, 2006) confirmed that a third party to a contract who suffers damage caused by a contractual breach can act in tort liability. The contractual fault is sufficient to characterize the tortious fault towards the third party, without the need for them to prove a distinct fault. This rule has simplified the burden of proof for the victimized third party.
Then, the commercial chamber, in a ruling from July 3, 2024, introduced a significant nuance. It ruled that the third party acting in tort liability can be opposed by the limiting liability clauses provided in the contract they invoke. In other words, if the contract between the contractor and the subcontractor caps the compensations, this cap can be invoked against the project owner acting against the subcontractor.
A Further Extension in 2025 on Limitation Clauses
The commercial chamber extended this reasoning in a ruling from December 17, 2025. Clauses related to forfeiture, limitation, or prior procedures provided in the contract can now be opposed to the third party acting on a tort basis. This extension strengthens the legal certainty for economic operators, who can anticipate the limits of their exposure by carefully drafting their contracts.
- 1991 (Besse): the third party acts solely in tort liability in non-transferring chains.
- 2006 (Boot Shop): the contractual breach is sufficient to ground the third party’s tort action.
- 2024 and 2025: contractual clauses (limitation, prescription, forfeiture) become enforceable against the third party invoking the contract.
Concrete Implications of the Besse Ruling for Construction Professionals
For construction stakeholders, the Besse ruling has direct consequences on the drafting of subcontracting contracts. The subcontractor knows that the project owner can only sue them on a tort basis, which alters the applicable burden of proof.
With the developments of 2024 and 2025, the limiting clauses inserted in the subcontracting contract take on new value. They no longer only protect against the action of the main contractor but also against that of the project owner acting in tort liability. Drafting precise limiting clauses becomes a risk management lever for subcontractors.
The Besse ruling remains the foundation of this legal architecture. The clear separation between contractual and tort liability in non-transferring chains has structured construction disputes for over three decades, and recent decisions only complement this logic by adding the enforceability of contractual arrangements.
