A French Commercial Lease Is a Consensual Contract — With Important Caveats

Under French law, a commercial lease (bail commercial) is a consensual contract. It is formed by the simple meeting of the parties' consents — offer and acceptance — without any need for a written instrument as a condition of validity. A landlord and tenant who agree on the leased premises, the rent, and the duration have, in principle, concluded a binding commercial lease, even if no paper has been signed and no formal document exists.

Courts have repeatedly held that a tenant who begins occupying premises with the landlord's knowledge and pays rent has accepted an offer of commercial lease, even without signing any written contract. The absence of a formal deed does not prevent the commercial lease statute (statut des baux commerciaux) from applying, provided the substantive conditions are met. That said, the consensual nature of the French commercial lease does not make written documentation optional in any practical sense. The absence of a written lease creates acute evidentiary difficulties, deprives both parties of clarity on the agreed terms, and prevents the lease from being enforceable against third parties.

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Key Principle

A French commercial lease is valid without a written document — it is formed by consent alone. But an unwritten lease cannot be proved against the counterparty by witness evidence alone where the value exceeds the threshold requiring written proof, and cannot be made opposable to third parties (including successors in title, creditors, and sub-tenants) without registration or publication. Written form is essential in practice.

The Three Essential Elements of a Valid French Commercial Lease Offer

For an offer to constitute a binding offer of French commercial lease, it must identify three essential elements set out in Article 1709 of the Civil Code and confirmed by consistent case law. A proposal that omits any one of these elements is not an offer at all, but merely an invitation to enter into negotiations:

1. The Leased Premises (la chose louée)
The property to be let must be sufficiently identified: at minimum the address, the nature of the premises (offices, retail space, warehouse, etc.), and the surfaces involved. Courts accept that parties may fix precise floor area measurements after the offer, provided the premises themselves are identified.
2. The Rent (le prix)
The initial rent must be agreed or determinable. An offer that fixes only the method of calculating the rent — for example, by reference to a valuation exercise or market rate — may suffice, but an offer that leaves the rent entirely open is not a valid offer. The duty not to disclose rent estimates (Art. 1112-1 al. 2 C. civ.) does not displace the requirement to agree on rent as an essential element.
3. The Duration (la durée)
The duration must be specified or determinable. Under the commercial lease statute, the minimum term is nine years. If parties agree a shorter term without complying with the rules governing short-term leases (baux dérogatoires), the lease is treated as a nine-year lease. An offer that specifies only "commercial lease" without duration is insufficient to bind.

An offer that specifies all three essential elements binds its author on acceptance, regardless of whether other terms — indexation clause, renewal terms, service charge provisions — are left for later negotiation. Courts will not allow a party to withdraw from a duly accepted offer on the basis that secondary clauses remain outstanding, unless those secondary clauses were expressly made a condition of agreement by the parties.

Mandatory Content of a French Commercial Lease

Once the decision has been made to formalise the lease in writing, French law imposes a number of provisions that must appear in every commercial lease instrument, and others that must be annexed to it.

The Minimum Duration Clause

A commercial lease must be for a minimum term of nine years. Any shorter term agreed between the parties, other than under the strict rules governing baux dérogatoires, does not prevent the tenant from claiming the full nine-year statutory protection. The clause specifying duration must comply with this minimum, and the drafting must clearly state whether the parties have agreed on a fixed term, a rolling nine-year term with triennial break rights, or some other permissible structure.

The Permitted Use Clause (Destination des Locaux)

The lease must specify the permitted use of the premises. The destination defines the activities the tenant is authorised to carry out on the premises, and any activity not within the agreed destination constitutes a breach that may justify termination without compensation. The permitted use clause interacts directly with the règlement de copropriété (where the building is held in co-ownership) and with local planning rules. A lease that authorises an activity prohibited by the règlement de copropriété may be annulled, with liability falling jointly on the landlord and the notary who drafted the instrument.

The Rent and Indexation Clause

Beyond the initial rent figure, a properly drafted French commercial lease must specify the conditions for rent review: the applicable index (ILAT for office and professional premises; ILC for commercial and craft activities; or, by agreement, the general construction cost index), the frequency of indexation, the base period, and any cap or floor on variation. The absence of an agreed indexation mechanism does not invalidate the lease, but it creates uncertainty and foregoes the automatic protection that indexation provides against rent erosion.

The Charges and Works Allocation Clause

Following the loi Pinel of 18 June 2014, every commercial lease subject to the post-2014 regime must contain a precise inventory of the charges, taxes, and works obligations allocated to the tenant. The list must be exhaustive: charges not listed in the lease cannot subsequently be invoiced to the tenant. A clause purporting to pass all charges to the tenant without an itemised list is ineffective for any lease concluded or renewed after 5 November 2014.

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Critical Trap

A French commercial lease that lacks the mandatory charges inventory does not merely leave the tenant with an unclear obligation: courts have held that the entire charges clause is void. The landlord loses the right to recover any service charges from the tenant for the period in question. This is an absolute consequence, not a matter of judicial discretion (CA Versailles 7-3-2024).

The Security Deposit Clause

There is no statutory obligation to provide a security deposit (dépôt de garantie) in a French commercial lease. However, where the parties agree on one, the clause must specify the amount, the conditions for release, and the interest regime. A deposit exceeding two months' rent is treated as a financial instrument subject to specific rules on interest accrual.

The Break Rights Clause (Clause de Résiliation Anticipée)

The tenant has a statutory right to terminate the lease at the end of each three-year period with six months' notice (the congé triennal). This right cannot be contractually excluded. The landlord, by contrast, has no equivalent statutory right to terminate early and can only do so if the lease contains a specific agreed break right, or in the limited cases where the statute authorises early termination (construction works, retirement, invalidity). Any break right clause in favour of the landlord must be expressly drafted; courts will not imply it.

Strongly Recommended Clauses in a French Commercial Lease

Beyond what the law requires, the following clauses are strongly recommended in every French commercial lease. Their absence will not invalidate the lease, but will create risks and disputes that well-drafted documentation avoids entirely.

Assignment and Subletting Rules
The statute permits the tenant to assign the lease in connection with a business transfer and to sublet with landlord consent. But the extent of the landlord's control over assignment and subletting — approval clauses, pre-emption rights, notarial deed requirements — must be expressly stated. An absence of any clause on assignment means the statutory default applies, which may be more permissive than the landlord intends.
Works and Alterations Regime
French law distinguishes between maintenance works (menues réparations) which fall to the tenant, structural works (grosses réparations — Art. 606) which fall to the landlord, and improvement works which occupy an intermediate zone. A detailed works clause allocating responsibility — and specifying whether tenant improvements must be removed or compensated at lease end — avoids the most common source of commercial lease litigation.
Condition of Premises (État des Lieux)
While not mandatory for validity, a detailed état des lieux annexed to the lease is essential for allocating dilapidation liability. In the absence of an état des lieux contradictoire drawn up at entry, the premises are presumed to have been in good repair at the start of the lease, exposing the tenant to liability for defects pre-existing their occupation.
Renewal Conditions
The statute provides a default renewal regime, but parties may and should specify the notice periods, the method for agreeing the renewal rent, and any derogations from the statutory valeur locative framework. A lease that is silent on renewal is enforceable, but disputes about renewal conditions are among the most costly and protracted in French commercial property law.

Compulsory Annexes to Every French Commercial Lease

French law imposes a number of technical documents that must be attached to the commercial lease instrument at signature. Their absence does not invalidate the lease, but it triggers specific legal consequences — including the possibility of liability for the party who failed to provide them and, in some cases, statutory presumptions unfavourable to that party.

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Mandatory Annexes at Lease Signature

Diagnostic de performance énergétique (DPE) — energy performance certificate. Required for all premises above a minimum threshold. The DPE classification increasingly affects the permissibility of rent increases and the lawfulness of letting premises that fall below minimum energy standards.

État des risques naturels, miniers et technologiques (ERNMT) — natural and technological risk disclosure. Required where the premises are located in a zone covered by a mandatory risk prevention plan (plan de prévention des risques). Failure to provide an accurate ERNMT gives the tenant the right to seek judicial termination or a rent reduction.

Dossier technique amiante (DTA) / état mentionnant la présence ou l'absence d'amiante — asbestos disclosure. For buildings with a building permit prior to 1 July 1997, the landlord must make the asbestos technical dossier available to the tenant. Failure to disclose known asbestos contamination has been held to constitute dol (fraudulent misrepresentation), giving the tenant the right to annul the lease and claim damages.

Triennial charges statement and forward works programme — under the post-2014 regime, the landlord must provide at lease signature (and thereafter every three years) a statement of charges incurred in the prior three years and a three-year forward programme of projected works, with their estimated cost and anticipated allocation between landlord and tenant.

Proving a French Commercial Lease: The Rules That Matter

Proof Between the Parties

Between the parties to the lease, the general rule is that contracts must be proved by written document when their value exceeds the threshold set by Article 1359 of the Civil Code (currently €1,500). In practice, a commercial lease will almost invariably exceed this threshold, and oral evidence alone will not suffice to prove its existence or terms. There is an important exception: where a party has been unable to produce written evidence through no fault of their own, or where the circumstances of the transaction are such that written evidence was not customary between merchants, oral evidence may supplement written evidence that already establishes the existence of the contract (commencement de preuve par écrit).

Proof Against Third Parties

A lease established by private deed (acte sous seing privé) has a fixed date (date certaine) between the parties from the date of signature. But it acquires a fixed date opposable to third parties only from one of the following events: registration with the tax authorities, death of one of the signatories, or formal acknowledgment in an official act. This matters acutely when the landlord sells the property, when insolvency proceedings are opened against a party, or when a competing claimant asserts priority over the lease.

Opposability to Third-Party Buyers

A French commercial lease binds a buyer of the leased property only if the buyer had knowledge of the lease at the date of the sale, or if the lease was made opposable by publication in the land registry (service de la publicité foncière). A lease not published in the land registry may not be enforceable against a buyer who acquired without knowledge of it. In practice, publication by notarial deed is the standard mechanism for ensuring full opposability, and for leases of significant duration or value, authentication by notary and publication should be considered standard.

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Notarial Deed vs. Private Deed

A French commercial lease may be established either by private deed (acte sous seing privé) or by notarial deed (acte authentique). Only a notarial deed has immediate date certaine opposable to all third parties, and only a notarial deed can be published in the land registry without further formality. For leases exceeding nine years or involving high-value properties, a notarial deed is strongly advisable. For shorter leases between commercial counterparties, a private deed registered with the tax authorities offers an acceptable level of third-party protection.

Registration and Stamp Duties

The conclusion of a French commercial lease triggers registration duties (droits d'enregistrement) unless the lease is subject to VAT (which is the case for most commercial leases where the landlord has opted to charge VAT). A lease subject to VAT is exempt from registration duty. A lease not subject to VAT must be registered and the duties calculated on the total amount of rents payable over the initial term are due at rates of 0% (up to €23,000), 3% (€23,000 to €200,000), and 5% (above €200,000).

Regardless of the VAT position, registration (or authentication by notary) is also required to confer date certaine on the lease for third-party purposes, and landlords regularly use the registration formality as a combined tax compliance and opposability measure.

What a French Commercial Lease Must Contain: The Essentials
Consensual contract (C. civ. Art. 1709): formed by agreement on premises, rent, and duration — no written deed required for validity between the parties. But an unwritten lease cannot be proved by oral evidence above the €1,500 threshold (Art. 1359) and cannot be made opposable to third parties without registration or publication.
Three essential elements for a binding offer: (1) identification of the premises; (2) rent — agreed or determinable; (3) duration — minimum nine years under the commercial lease statute. A shorter agreed term does not displace the tenant's statutory nine-year protection (baux dérogatoires rules aside).
Permitted use clause mandatory: activities outside the agreed destination des locaux constitute a breach. The clause interacts with the règlement de copropriété and local planning rules — a lease authorising a prohibited activity may be annulled with joint liability falling on landlord and notary.
Charges inventory mandatory post-2014 (C. com. Art. L 145-40-2; Art. R 145-35): an absent or non-itemised charges clause is entirely void — the landlord loses the right to recover any service charges from the tenant for the relevant period (CA Versailles 7-3-2024). A general "all charges payable by tenant" clause is ineffective for leases concluded or renewed after 5 November 2014.
Compulsory annexes: DPE (energy performance certificate); ERNMT (natural and technological risk disclosure — failure entitles tenant to seek termination or rent reduction); asbestos dossier (for buildings permitted before 1 July 1997 — failure to disclose known asbestos = dol); triennial charges statement and 3-year forward works programme (post-2014 regime).
Opposability to third-party buyers: requires publication in the land registry (Décret 55-22 du 4-1-1955); without it, a buyer acquiring without knowledge of the lease may not be bound. A notarial deed has immediate date certaine and can be published without further formality; a private deed acquires third-party date certaine only on registration, death of a signatory, or acknowledgment in an official act (C. civ. Art. 1377).
Registration duties (CGI Art. 739 s.): leases not subject to VAT must be registered; duties at 0% (up to €23,000), 3% (€23,000–€200,000), 5% (above €200,000), calculated on total rents over the initial term. Leases subject to VAT are exempt from registration duty. Registration also provides date certaine against third parties.
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This article is for general information and educational purposes only. It does not constitute legal advice and does not create a lawyer-client relationship. Laws and regulations may have changed since publication. Always seek qualified French legal advice before concluding, assigning, or terminating a French commercial lease.