4 types
Forms of déspécialisation — all mandatory; clauses restricting them are void (Art. L. 145-15)
2 months
Landlord's deadline to object to a restreinte or cession-déspécialisation notice — silence = acceptance
Triennial
Earliest point at which landlord can claim a rent increase for déspécialisation restreinte — not before
Retirement only
Cession-déspécialisation reserved for tenants who have applied for their retirement or invalidity pension

Overview: Four Types of Déspécialisation

The right to modify the permitted use of commercial premises flows from Articles L. 145-47 to L. 145-54 of the Code de commerce, which are declared mandatory by Article L. 145-15. Any clause that restricts or prohibits the tenant's exercise of these rights can be declared void. The lease can extend the tenant's statutory rights beyond what the law provides, but cannot reduce them. Once the right has arisen, the tenant can waive it — but only post-acquisition, not in advance.

Type 1 — Partial
Déspécialisation Restreinte
Art. L. 145-47
Adds a connected or complementary activity alongside the authorised one. Landlord has 2 months to object on the ground that the activity is not connected/complementary — no other ground available. After 2 months, objection is inadmissible.
Type 2 — Full
Déspécialisation Plénière
Arts. L. 145-48 to L. 145-52
Complete change to a different activity on economic grounds. Landlord can refuse on serious and legitimate grounds. Rent adjustment available immediately from start of new activity (not just at triennial review).
Type 3 — Retirement
Cession-Déspécialisation
Art. L. 145-51
Assignment of lease with change of activity, reserved to tenants retiring or receiving invalidity pension. Approval clauses are void. Landlord can exercise priority to repurchase or contest building compatibility. Change is a ground for renewal uncapping.
Type 4 — Implied
Déspécialisation Incluse
Judicial interpretation
Activities already implicitly included in the contractual permitted use, as interpreted through commercial usage. No notification procedure required — determined by courts on a fact-specific basis.
Type What it allows Landlord's position
RestreinteAdding a connected or complementary activity alongside the authorised oneCan only object that the activity is not connected/complementary; 2-month deadline to object or lose the right
PlénièreComplete change to a different activity on economic groundsCan refuse on serious and legitimate grounds; otherwise must accept with immediate rent adjustment and possible indemnity
Cession-déspécialisationAssignment of lease with change of activity, reserved to tenants retiring or receiving invalidity pensionCan exercise priority to repurchase; can contest building compatibility; approval clauses are void
IncluseActivities already implicitly included in the contractual permitted use through commercial usageNo procedure required; dispute resolved by courts based on commercial evolution of the activity

Déspécialisation Restreinte: Adding a Connected Activity

The Condition: Connected or Complementary Activity

The tenant may add one or more activities that are connected (connexe) or complementary (complémentaire) to the activity authorised in the lease. The decisive test is the identity of clientele: if the new activity serves the same customers, it is likely to qualify. Courts have found the following to be connected: women's ready-to-wear added to a lingerie business (Cass. 3e civ., 24 October 1984); all categories of recordings added to a classical records business; vehicle sales and repairs added to a garage; and castle ticket sales added to bars and restaurants near the chateau (Cass. 3e civ., 16 September 2015).

By contrast, restaurant activity added to a hotel-only use was held not connected because it attracts an external clientele distinct from hotel guests (Cass. 3e civ., 30 November 2023). Courts also refused to characterise take-away meal preparation as connected to a general food retail business where required equipment and specialised staff made it a distinct activity (CA Nouméa, 29 April 2021). The shared product category, similar working methods, and shared customer base are all relevant criteria.

Procedure

The tenant notifies the landlord by bailiff's act. The landlord has two months to contest the connected/complementary character of the activity. The landlord does not need to justify their objection in terms of their own interests — they simply need to express clear opposition (Cass. 3e civ., 9 February 2017). Any objection raised after the two-month period is inadmissible, and the tenant may then proceed even if the activity was not, in fact, connected or complementary. The tenant must wait for the period to expire before commencing the new activity — starting without completing the procedure can justify lease termination if the breach is sufficiently serious (Cass. 3e civ., 31 March 2009).

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Practitioner Tip — Combine Both Requests

Where it is uncertain whether the new activity will qualify as connected/complementary, serve a single notice covering both déspécialisation restreinte (primary request) and déspécialisation plénière (subsidiary request) simultaneously. Both procedures then run in parallel, and the stronger protection applies depending on how the court characterises the activity.

Effects

The tenant must continue the original authorised activity alongside the new one — the new activity can become predominant but cannot entirely replace the original. A rent increase may only be claimed at the first triennial review following the notification, and only if the added activity has itself caused a change in the rental value. A contractual amendment attempting to monetise the déspécialisation before that triennial review is void (Cass. 3e civ., 19 May 2004). Déspécialisation restreinte also overrides exclusivity clauses: the landlord cannot invoke a no-competition clause agreed with another tenant to block a connected activity added by this tenant.

Déspécialisation Plénière: Complete Change of Activity

The tenant may seek a total change of activity under Articles L. 145-48 to L. 145-52 where two substantive conditions are met: the change must be justified by the requirements of economic conditions and the rational organisation of distribution; and the new activity must be compatible with the destination, character, and situation of the building.

The landlord has stronger grounds for refusal here. They may refuse on serious and legitimate grounds, including incompatibility with the building, obligations to other tenants under exclusivity clauses, or the absence of the required economic justification. A mere financial prejudice is not a serious and legitimate ground — for that level of harm the landlord is entitled to an indemnity rather than a veto. A landlord who invokes false grounds, or fails to follow through on the stated objection, loses the right to oppose a future application and may owe damages to the tenant (Art. L. 145-53 C. com.).

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Rent Adjustment for Plénière — More Immediate

For a full déspécialisation, the rent adjustment is more immediate than for the partial type. The landlord can demand an adjustment from the date the tenant is entitled to begin the new activity — not only at the next triennial review. The adjustment is capped at market rental value. Where the landlord suffers a genuine financial prejudice that does not constitute a serious and legitimate ground for refusal, that prejudice is compensated by the rent adjustment rather than by a right to veto the change.

Cession-Déspécialisation: Assignment on Retirement

This simplified procedure under Article L. 145-51 is reserved for tenants who have applied for their retirement pension or been awarded an invalidity pension under the relevant artisanal or commercial/industrial pension scheme. It applies to sole traders, sole shareholders of a single-member company, and managing partners with at least two years' tenure of a SARL holding the lease.

The tenant notifies the landlord and any registered creditors by bailiff's act of their intention to assign the lease with a change of activity, specifying the intended activities and the agreed sale price. The landlord then has two months to: (1) accept; (2) exercise a priority right to repurchase at the notified price; or (3) challenge the compatibility of the new activities with the building before the court. Silence for two months = acceptance.

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Important — Approval Clauses Are Void for Retirement Assignments

A lease clause requiring the landlord's prior written authorisation for assignment is ineffective where the assignment is made in the context of retirement-related déspécialisation. The Court of Cassation confirmed in 2018 that such a clause contravenes the mandatory public order provisions of Article L. 145-51 (Cass. 3e civ., 5 April 2018, n° 17-14.882). The landlord's only procedural rights are those set out in the statute itself: acceptance, priority repurchase, or court challenge on building compatibility.

No immediate rent adjustment is available to the landlord at the moment of the cession-déspécialisation. However, the change of activity occurring during the expired lease constitutes a ground for uncapping the renewal rent at the next renewal (Cass. 3e civ., 15 February 2023, n° 21-25.849). The landlord's failure to exercise the priority right, or to oppose in court, does not amount to a waiver of the right to seek uncapping at renewal.

Déspécialisation Incluse: Activities Implicitly Authorised

The final category is not a statutory procedure but a judicial interpretation tool. Courts read the original permitted use clause against the evolution of commercial usage, identifying activities that were always implicitly included in the authorised use. No notification procedure is required — the activity is treated as already permitted under the existing lease.

This is inherently fact-specific. Confirmed examples include pharmacy and parapharmacy (Cass. 3e civ., 21 March 2007), tobacco and phone card sales at a débit de tabac (Cass. 3e civ., 6 January 2009), heating engineering and plumbing (Cass. 3e civ., 13 January 1999), wine merchant and caterer (CA Paris, 13 May 2009), and castle ticket sales by surrounding bars and restaurants (Cass. 3e civ., 16 September 2015). Courts apply a relatively restrictive reading and do not treat this route as a way to bypass the formal procedures.

Déspécialisation — Practical Points
  • Mandatory rights (Art. L. 145-15): all four forms of déspécialisation are mandatory. Clauses restricting or prohibiting them are void. The lease can expand these rights beyond the statutory floor, but cannot reduce them. A tenant can waive a right once it has arisen — not in advance.
  • Restreinte procedure (Art. L. 145-47): notify by bailiff's act; landlord has 2 months to object — only on connected/complementary character, not on own interests. After 2 months, objection is inadmissible. Tenant must wait before starting the new activity. Original activity must continue — new activity cannot entirely replace it. Combine with a subsidiary plénière request in the same notice if the character of the activity is uncertain.
  • Restreinte rent increase: only at the first triennial review following the notification, and only if the added activity has caused a change in rental value. A contractual amendment advancing that adjustment is void (Cass. 3e civ., 19 May 2004, n° 03-11.303). Déspécialisation restreinte also overrides exclusivity clauses agreed with other tenants.
  • Plénière (Arts. L. 145-48 to L. 145-52): requires economic justification and compatibility with the building. Landlord can refuse on serious and legitimate grounds — mere financial prejudice is not enough. Rent adjustment available immediately from the start of the new activity (not only at triennial review), capped at market value. Landlord who invokes false grounds may owe damages (Art. L. 145-53).
  • Cession-déspécialisation (Art. L. 145-51): reserved to tenants applying for retirement or invalidity pension; also available to sole shareholders and SARL managing partners with 2+ years' tenure. Approval clauses in the lease are void (Cass. 3e civ., 5 Apr. 2018). No immediate rent adjustment but change grounds uncapping at next renewal (Cass. 3e civ., 15 Feb. 2023).
  • Incluse: no procedure — determined by courts based on commercial usage evolution. Restrictive reading: not a substitute for the formal procedures. Confirmed categories include pharmacy/parapharmacy, tobacco/phone cards at a débit de tabac, heating engineering and plumbing, and castle ticket sales by adjacent bar/restaurant operators.
Considering a Change of Activity or Facing an Expansion Notice?

Whether you are a tenant planning to add or change your activity, or a landlord assessing your grounds for refusal and your right to adjust the rent, we advise on the correct procedure, the strength of any objection, and the financial consequences of each type of déspécialisation.

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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 on déspécialisation in a French commercial lease.