Subletting and Lease Assignment in Switzerland
In Swiss tenancy law, subletting and lease assignment represent two distinct legal mechanisms allowing a tenant to temporarily or permanently transfer their tenancy rights to a third party. These practices are governed by precise statutory provisions aimed at balancing the interests of landlords and tenants. The Swiss Code of Obligations defines the conditions under which a tenant may sublet their property or assign their lease, as well as the limits of these rights. Our law firm regularly accompanies landlords and tenants in navigating this complex legal framework, offering personalised advice to secure their respective interests and prevent potential disputes.
Comparison: Subletting vs Lease Assignment
| Criterion | Subletting (art. 262 CO) | Lease Assignment (art. 263 CO) |
|---|---|---|
| Types of leases concerned | All (residential, commercial, mixed) | Commercial leases only |
| Possible extent | Partial or total | Necessarily total |
| Main tenant / landlord relationship | Maintained in full | Transferred to the assignee |
| Residual liability of the assigning tenant | Total (remains liable) | Joint and several, max. 2 years |
| Landlord's consent | Required (refusal limited to 3 grounds) | Required in writing |
| Subletting / assignment rent | Max. ~20% higher (without furniture) | Conditions of the original lease |
Legal Framework of Subletting in Switzerland
Subletting in Switzerland is principally governed by article 262 of the Code of Obligations (CO). This statutory provision establishes the fundamental right of the tenant to sublet all or part of their dwelling, under certain conditions. The Swiss legislator has designed this mechanism as a right of the tenant, but not as an absolute freedom.
Under article 262 CO, the tenant may sublet all or part of the property with the landlord's consent. This consent is necessary but may only be refused in three specific situations:
- If the tenant refuses to communicate the subletting conditions to the landlord
- If the subletting conditions are abusive compared to those of the main lease
- If the subletting presents major inconveniences for the landlord
Federal Supreme Court case law has clarified these concepts. For example, regarding the abusive nature of conditions, it is generally accepted that a rent increase of up to 20% compared to the main lease may be justified if the subtenant benefits from use of the main tenant's furniture. Beyond that, the risk of the subletting being qualified as abusive increases considerably.
Procedure for Authorisation Request
The subletting authorisation request must be addressed in writing to the landlord. This request should contain:
- The precise identity of the proposed subtenant
- The subletting conditions (duration, rent, areas concerned)
- The reason for the subletting
The landlord has a reasonable period to respond to this request, generally set at 30 days in practice. Failure to respond within this period does not constitute tacit acceptance. If the landlord refuses consent without valid grounds, the tenant may apply to the conciliation authority for tenancy disputes.
Conditions and Limits of Lease Assignment
Lease assignment constitutes a different legal mechanism from subletting, regulated by article 263 of the Code of Obligations. Unlike subletting which maintains the main tenant in the contractual relationship, lease assignment fully transfers the rights and obligations of the assigning tenant to the assignee.
Article 263 CO stipulates that the tenant of commercial premises may transfer their lease to a third party with the landlord's written consent. This provision has several fundamental characteristics:
- It applies only to commercial leases, excluding residential leases
- The landlord's consent must be obtained in written form
- The landlord may only refuse consent for valid grounds
Valid grounds for refusal include notably:
- The person of the assignee (doubtful solvency, activity incompatible with the building)
- The content of the assignment contract (substantial modification of the use of the premises)
Legal Effects of the Assignment
Lease assignment produces significant legal effects:
- The assignee becomes the new tenant and assumes all the rights and obligations of the lease
- The assignor is released from their future obligations, but remains jointly and severally liable until the lease expires or is terminated, but for a maximum of two years
- Security provided by the assignor (security deposit, bond) subsists unless otherwise agreed
Practical Differences between Subletting and Lease Assignment
Although both subletting and lease assignment allow a third party to occupy the premises initially leased by the main tenant, these two legal mechanisms present fundamental differences that should be well understood before choosing one or the other option.
Structure of Contractual Relations
In the context of subletting:
- The main lease between the landlord and the main tenant subsists in full
- A second lease agreement is formed between the main tenant (now sub-landlord) and the subtenant
- There is no direct contractual link between the original landlord and the subtenant
In the context of a lease assignment:
- The assignee (new tenant) is substituted for the assignor (former tenant) in the original lease agreement
- A direct contractual relationship is established between the landlord and the assignee
- The assignor exits the contractual relationship, subject to their temporary joint and several liability
Scope of Application
Subletting may concern:
- All types of leases (residential, commercial, mixed)
- All or only part of the leased premises
- Temporary or indefinite periods
Lease assignment is on the other hand:
- Limited to commercial premises under Swiss law
- Necessarily total (impossibility of partially assigning a lease)
- In principle definitive, although a temporary assignment is theoretically conceivable
Risks and Precautions for the Parties Involved
Subletting and lease assignment involve specific risks for all parties involved. Knowledge of these risks allows the necessary precautions to be adopted to minimise them.
Risks for the Landlord
The landlord faces several potential risks:
- Loss of control over the identity of the actual occupant of the premises
- Risk of inappropriate use or deterioration by a third party they did not choose
- Increased difficulty in enforcing the conditions of the main lease
- Additional complexity in the event of eviction proceedings
Risks for the Main Tenant
The main tenant or assignor is exposed to:
- Maintained liability towards the landlord in the event of default by the subtenant
- Difficulties in recovering their dwelling in the event of prolonged subletting
- Temporary joint and several liability after lease assignment
- Complications in the event of deterioration of the premises by the subtenant
Subletting in the Age of Digital Platforms
The rise of short-term rental platforms such as Airbnb raises specific legal questions. The Federal Supreme Court has clarified in several recent judgments that:
- The repeated making available of a dwelling on these platforms does constitute subletting within the meaning of article 262 CO
- The landlord's prior authorisation remains necessary for each subletting
- The repetitive and systematic nature of these sublettings may constitute a major inconvenience for the landlord
Cantonal courts have developed nuanced case law on these issues. Some admit that a lease clause prohibiting subletting via these platforms may be valid, while others require a case-by-case analysis of the inconveniences alleged by the landlord.
Frequently Asked Questions about Subletting and Lease Assignment
Can the landlord totally prohibit subletting in the lease agreement?
No. A total prohibition on subletting clause is void under Swiss law, because art. 262 CO confers on the tenant a right to sublet which the landlord may only restrict in the three cases provided by law: refusal to communicate the subletting conditions, abusive conditions compared to the main lease, or major inconveniences for the landlord. The landlord may however provide for conditions for authorisation requests or procedural rules in the agreement.
Within what deadline must the landlord respond to a subletting request?
The law does not fix a precise deadline, but practice and case law consider that a period of 30 days is reasonable. If the landlord does not respond within this period, they cannot refuse subletting on the grounds of failure to respond. In the event of refusal without valid grounds, the tenant may apply to the conciliation authority to have the illegitimacy of the refusal established. PBM Avocats advises both parties on their rights and obligations in Geneva and the canton of Vaud.
What is the main difference between subletting and lease assignment?
In subletting (art. 262 CO), the main tenant remains party to the lease agreement, concludes a second lease with the subtenant and remains responsible towards the landlord. Subletting may be partial and applies to all types of leases. In lease assignment (art. 263 CO), the tenant fully transfers their rights and obligations to the assignee, who becomes the new tenant. Assignment is only possible for commercial leases and requires the landlord's written consent. The assignor remains jointly and severally liable until the lease expires, but for a maximum of 2 years.
Can a tenant sublet their dwelling on Airbnb?
Yes, but only with the prior authorisation of the landlord (art. 262 CO). According to Federal Supreme Court and cantonal court case law, the repeated making available of a dwelling on platforms such as Airbnb constitutes subletting in the legal sense. The landlord may refuse if the subletting conditions are abusive (excessive rent compared to the nightly rates applied) or if the repeated and commercial nature of the subletting presents major inconveniences for them (deterioration, nuisances for neighbours, quasi-hotel character). Without authorisation, the landlord may terminate the lease.
Can the landlord refuse a commercial lease assignment?
Yes, but only for valid grounds. Art. 263 CO provides that the landlord may only refuse consent to the assignment of a commercial lease for legitimate reasons, notably: doubtful solvency of the assignee, activity incompatible with the building or the purpose of the premises, substantial modification of the intended use. An unjustified refusal or one based on invalid grounds may engage the landlord's civil liability if the tenant-assignor suffers economic harm (e.g., inability to sell their business goodwill).