Possession is the factual control a person exercises over a thing (art. 919 al. 1 CC). It is fundamentally distinct from ownership: whereas ownership is a right established by law, possession is a factual state — independent of the existence of a legal title. A tenant, a borrower, or even a thief possesses the thing without being its owner. The Swiss Civil Code (art. 919–941 CC) organises the protection of this factual state through an autonomous regime of possessory actions, whose purpose is to maintain or restore the disturbed factual order, without prejudging the substantive law.
The concept of possession (art. 919 CC)
Under art. 919 al. 1 CC, a person is a possessor if they have effective control over a thing. This control involves two elements:
- The corpus: the effective material control over the thing — physical detention or the power to dispose of the thing at any time.
- The animus: the intention to conduct oneself as the holder of a right over that thing, whether as owner, tenant, usufructuary or on any other basis.
Possession applies to corporeal things (movables and immovables). It is protected as such, without the possessor being required to justify their right when exercising possessory actions.
Types of possession
Direct and indirect possession (art. 920 CC)
Art. 920 CC distinguishes two forms of possession according to the relationship between the possessor and the thing:
- Direct possession is that of the person who actually holds the thing: the tenant who occupies the flat, the depositary who keeps the thing entrusted to them.
- Indirect possession is that of the person who has transferred the thing to a third party while retaining a right over it: the landlord remains indirect possessor of the flat rented to their tenant. Both possessions coexist simultaneously over the same thing.
Possession as owner and possession on another basis
The possessor may exercise their control as owner (behaving as if they were the owner) or on another basis (tenant, usufructuary, pledgee, depositary, etc.). This distinction is determinative for adverse possession, which requires possession as owner (art. 728 CC for movables; art. 661 CC for immovables).
Good faith and bad faith possession
A possessor is in good faith when they believe, without fault on their part, that they have a right over the thing. They are in bad faith when they know or should know that they do not have that right. Good or bad faith has implications notably for rights to fruits (art. 938–940 CC), liability for deterioration, and the conditions for adverse possession.
Acquisition and loss of possession (art. 922–924 CC)
Possession is acquired by taking effective control over the thing (art. 922 CC). This may result from:
- A direct physical transfer of the thing (hand-to-hand delivery)
- A transfer of the means of control (keys, access documents)
- A declaration by the previous possessor, if the thing is already in the acquirer's hands on another basis (constitutum possessorium, art. 924 CC)
- An assignment of the action for restitution against the third party who holds the thing (traditio brevi manu)
Possession is lost by voluntary abandonment of control, transfer to a third party, or definitive loss of factual power over the thing (art. 922 al. 2 CC).
The presumption of ownership (art. 930–931 CC)
Art. 930 al. 1 CC establishes an important legal presumption: the possessor of a movable thing is presumed to be its owner. This presumption is rebuttable — it may be overturned by contrary evidence — but it has the effect of reversing the burden of proof: it is for the person challenging the possessor's right to demonstrate that the latter is not the owner.
Art. 931 CC extends this logic to indirect possession: the indirect possessor who transfers the thing to a third party on a basis acknowledging the third party's right is presumed to have the right they acknowledge. These presumptions facilitate the circulation of goods and the security of transactions.
Possessory actions
The reintegration action (art. 927 CC)
Art. 927 CC gives the possessor dispossessed by an act of usurpation an action for restitution of the thing. Usurpation is the taking of possession without the possessor's consent and without a right to do so. The claimant must establish:
- That they possessed the thing at the date of dispossession
- That they were deprived of that possession by the defendant's act
They need not prove their ownership. The defendant may, however, defeat the action by demonstrating a right to possess the thing superior to that of the claimant (art. 927 al. 2 CC). The action seeks restitution of the thing itself, not damages.
The disturbance action (art. 928 CC)
Where the possessor has not been deprived of their possession but is disturbed in its exercise, art. 928 CC allows them to seek cessation of the disturbance and prohibition of its repetition. The disturbance may take various forms: encroachment on a neighbouring land, acts disrupting the enjoyment of a flat, obstruction of access to a thing. Again, proof of ownership is not required.
Time limits (art. 929 CC)
Art. 929 CC requires that possessory actions be brought within one year from the day the possessor became aware of the dispossession or disturbance and of the identity of the perpetrator. This period is one of forfeiture: it cannot be interrupted or suspended, and its expiry definitively extinguishes the right to act by the possessory route. Vigilance is therefore essential.
Distinction between possessory action and petitory action
| Criterion | Possessory action (art. 927–929 CC) | Petitory action (art. 641 al. 2 CC) |
|---|---|---|
| Basis | Factual state (possession) | Real right (ownership or other right) |
| Required proof | Prior possession and interference | Existence and extent of the right |
| Active standing | Any possessor (including without title) | Holder of the real right only |
| Time limit | 1 year from knowledge (forfeiture) | In principle imprescriptible (ownership) |
| Purpose | Restore the disturbed factual order | Recognise and enforce the right |
| Cumulation | Both actions may be cumulated if the conditions are met | |
Possession and adverse possession
Prolonged possession may lead to the acquisition of ownership through adverse possession, provided all the statutory conditions are met.
Adverse possession of movables (art. 728 CC)
A person who possesses a movable as owner, in an uninterrupted, undisturbed, open and good faith manner for five years acquires ownership thereof (art. 728 al. 1 CC). Good faith is required not only at the time of entering into possession, but throughout the period (art. 728 al. 2 CC). Bad faith — notably that of a thief — precludes adverse possession.
Adverse possession of immovables (art. 661–663 CC)
For immovables, the Civil Code distinguishes two forms of adverse possession:
- Ordinary adverse possession (art. 661 CC): good faith possession as owner for thirty years, entitling registration in the land register as owner.
- Extraordinary adverse possession (art. 662 CC): possession as owner for ten years by a person whose name appears in the land register on the basis of a void or rescinded act, or who obtained possession following an act of disposition by an unauthorised person.
- Acquisitive prescription by boundary demarcation (art. 663 CC): special rules applicable to neighbouring lands where boundaries are uncertain.
Self-defence of the possessor (art. 926 CC)
Art. 926 CC recognises the possessor's right to defend themselves against unjustified interference with their possession. This right of self-defence has two components:
- Resistance to ongoing interference (art. 926 al. 1 CC): the possessor may repel by force any interference with their possession, provided the use of force is proportionate and immediate.
- Immediate recapture of the thing (art. 926 al. 2 CC): in the event of theft or dispossession, the possessor may pursue the perpetrator immediately and reclaim the thing by force, provided the recapture is flagrant and immediate.
Self-defence is, however, strictly circumscribed by art. 926 al. 3 CC: any excessive violence is prohibited. The possessor who uses disproportionate force incurs civil liability and is exposed to criminal prosecution. This right is only justified in emergency situations where recourse to the competent authorities cannot occur in time.
Frequently asked questions about possession and possessory protection
What is the difference between possession and ownership?
Ownership is a real right established by law (art. 641 CC): the owner holds a legal title over the thing. Possession, by contrast, is a factual state: it is the effective control exercised over a thing, independently of any legal right (art. 919 CC). One may be an owner without possessing (e.g. the owner whose thing has been stolen) and a possessor without being an owner (e.g. a tenant, a thief). This distinction is fundamental because possessory actions protect possession as such, without requiring the claimant to prove ownership.
How can I act if someone deprives me of my possession?
If you have been deprived of your possession by an act of dispossession (taking without your consent), you have the reintegration action provided for in art. 927 CC. This action allows you to seek restitution of the thing from the usurper, without having to prove your ownership — it suffices to demonstrate that you possessed the thing and were dispossessed of it. If you are merely disturbed in your possession without being deprived of it, the disturbance action under art. 928 CC applies. In both cases, the limitation period is one year from knowledge of the facts (art. 929 CC).
Within what time limit must one act?
Art. 929 CC sets a one-year period for bringing a possessory action. This period runs from the moment the possessor became aware of the dispossession or disturbance and of the identity of the perpetrator. It is a period of forfeiture (not prescription), meaning it cannot be interrupted or suspended. Once it has elapsed, the possessory action is definitively extinguished. It is therefore imperative to act promptly. If the period has expired, the aggrieved possessor can no longer rely on possessory actions, but may still resort to the petitory action (based on real rights) if its conditions are met.
Can a thief acquire ownership through adverse possession?
Regarding movables, art. 728 CC requires, for adverse possession, five years of possession as owner and in good faith. A thief, however, is in bad faith — they know they are not the owner and that their acquisition is unlawful. Adverse possession of movables is therefore closed to them. On the other hand, if the thing passes into the hands of a third-party acquirer in good faith who is unaware of the unlawful origin, that third party may in principle benefit from adverse possession of movables after five years (art. 728 CC). For immovables, ordinary adverse possession requires thirty years of possession (art. 661 CC) and extraordinary adverse possession also requires good faith and ten years of possession (art. 662 CC) — bad faith equally precludes it.
May I defend myself by force if someone takes my property?
Art. 926 CC enshrines the possessor's right of self-defence. The possessor may use force to repel unjustified interference with their possession, provided that the use of force is immediate, proportionate and necessary. In the event of theft or dispossession, they may pursue the perpetrator immediately and reclaim the thing by force if done flagrantly. This right is, however, strictly circumscribed: any disproportionate or delayed use of force engages the civil and criminal liability of the possessor. It may only be exercised in emergencies, when recourse to the authorities is impossible within the required timeframe.