A farmer pays a sum to take over elements of a holding: equipment, improvements, sometimes cultivation methods and know-how. Years later, the farmer claims it back as a sum unduly paid. On 6 October 2016, the Cour de cassation (the French supreme court for civil matters) held, in a reported decision, that the courts ruling on the facts (first-instance court, Court of Appeal) cannot exclude know-how from the transferable elements without examining in what way it could not be transferred. What remains is to establish what was really passed on, and what it was worth.
The facts
Under a lease taking effect on 1 February 1984, a married couple let cellars intended for mushroom growing to another couple. An agreement transferring elements of the farm business (cession d’éléments d’exploitation agricole) was concluded on 6 March 1984; the tenants paid a sum under it, and the decision states neither the amount nor the date of payment.
A property-holding company (société civile immobilière), holding the rights of the landlords’ successors, then served the tenants with a notice to quit on the ground of retirement age. The tenants claimed from the landlords’ successors, under article L. 411-74 of the Rural and Maritime Fishing Code (code rural et de la pêche maritime), the return of the sum paid under the agreement of 6 March 1984.
On 5 May 2011, the Amiens Court of Appeal allowed the claim: cultivation methods, processes and know-how, “assuming they were specific to the transferor and that knowledge of them was not directly accessible to the public, could not constitute transferable elements of the farm business” (translated from the French).
The decision
The Cour de cassation quashed the decision in all its provisions (Cass. 3e civ., 6 October 2016, appeal no. 11-21.700, reported), for lack of legal basis (manque de base légale) in relation to article L. 411-74: an examination needed to apply the text was missing.
By so ruling, “without examining in what way the cultivation methods or know-how could not constitute transferable elements of the farm business on a change of farmer, the Court of Appeal did not give a legal basis to its decision”. The case was remitted to the Douai Court of Appeal; the tenants were ordered to pay the costs and €3,000 to the landlords’ successors (article 700 of the Code of Civil Procedure).
The published summary states what the Court of Appeal had to examine: “whether real cultivation methods and specific know-how had been transferred”.
The Court does not say that the sum paid under the agreement was justified, nor that all know-how can be transferred and paid for. It censures an exclusion of principle, made without saying in what way methods and know-how, even specific to the transferor, could not be transferred. The answer on the merits was for the Douai Court of Appeal, designated to rehear the case.
What this changes for valuation
A sum is undue only if it has no consideration. Article L. 411-74 penalises, on a change of farmer, any unjustified payment of money or valuables and any takeover of movable property imposed at a price not matching its market value; sums unduly received are recoverable (sujettes à répétition): they must be repaid. The text thus points to the sum paid without consideration, or the part exceeding the value of the consideration. Since a farm lease has no patrimonial value in itself, as the decision of 3 November 2016 on the tenant farmer’s estate recalls, paying merely for the right to enter the premises has no consideration; paying for elements actually transferred may have one.
A more recent decision, a different object. On 2 July 2026, regarding the farm rent of an equestrian centre, the Cour de cassation held a security deposit received by the landlord to be undue, even if repayable, because the statutory farm tenancy regime lists exhaustively the payments of money it permits. The two decisions do not contradict each other: a security deposit is the price of no transferred element. Read together, they lead to the view that a sum paid outside the cases the statute provides for is undue, except to the extent that it pays, at their value, for elements actually transferred.
Know-how is described before it is quantified. The Court of Appeal’s hypothesis, which the Cour de cassation did not discuss, and the published summary (real methods, specific know-how) give working markers: methods specific to the transferor, knowledge of which is not directly accessible to the public. The report lists what the agreement mentions and what was passed on: written procedures, support from the transferor, adapted installations, yield data. It separates what any farmer in the sector knows or can learn from what belongs to the holding and gives the incoming farmer a measurable advantage.
A valuation at the date of the transfer. The valuer takes as the valuation date (date de valeur) that of the agreement, here 6 March 1984, since the decision does not settle this point. The valuation is retrospective: the agreement, accounts, yields and market of the time. For know-how, direct comparison is rarely possible; the valuer reasons by the méthode par le revenu (income method), on the extra margin brought to the incoming farmer for as long as the advantage lasts, and cross-checks it against the cost of acquiring the same skill: training, trials, lost harvests (Charte de l’expertise en évaluation immobilière, the French property valuation charter, 6th edition, November 2025, Title III, ch. 2). Since no method is universal (Title III, ch. 8), the report justifies its choice.
Add up, then compare. For equipment, stocks or livestock taken over, the text itself sets the measure: market value. The report adds up the value of each element actually transferred and compares it with the sum paid; the gap measures what may be returned, the claim being open, for movable property taken over, only if the sum paid exceeds its market value by more than 10% (article L. 411-74, as currently worded). This takeover price is distinct from the outgoing tenant’s indemnity for improvements, governed by other rules: see the decision of the same day on the indemnity limited to amortised improvements.
What the valuer takes from it
- Cultivation methods and know-how cannot be excluded from the transferable elements without examining in what way they could not be transferred.
- The report lists the elements transferred, tangible and intangible, and separates what was specific to the transferor from what any farmer could know.
- The valuer values each element at the date of the transfer, the decision not fixing the valuation date: by the extra income or the cost avoided for know-how, at market value for movable property.
- The gap between the sum paid and the value of the elements actually transferred measures what may be returned; for movable property, the claim requires the sum paid to exceed its market value by more than 10%.
- The takeover price is distinct from both the outgoing tenant’s indemnity and any value of the lease, which has none in itself.
Further reading
The Market value page describes the assignment, how it runs and its fee. The guide Producing a valuation in a French court: which format to choose? and the glossary entries valeur vénale (market value), date de valeur (valuation date) and pas-de-porte (entry premium) complement this article. Two other reported farm lease decisions of autumn 2016 are discussed separately: Outgoing French farm tenant: amortised cost, not added value and Tenant farmer’s estate: the farm business valued apart from land. On the same theme: Farm rent of an equestrian centre: the global clause is unlawful and Renewed farm rent: the tenant’s unauthorised buildings stay out. The decision is available on Légifrance.
What next
A sum paid on taking over a farm, and its consideration disputed?
I list what was really transferred on the change of farmer, equipment, improvements, methods, and I establish the value of each element at the date of the transfer, so that the court can tell the real consideration from the undue sum.
Free quote, by email or by phone. No commitment before the quote is accepted. Fees are never linked to the value of the property (Charte de l’expertise, Title I, §2.1).
