Adverse Possession of Common Areas in Italian Condominiums: When Is It Possible

Adverse possession of common areas in an Italian condominium, known as usucapione, is one of the most delicate and misunderstood topics for property managers and unit owners alike. It is common for a unit owner to occupy a storage room under the stairs, a courtyard corner or a shared attic for years, believing that the mere passage of time makes them the exclusive owner of that space. In reality adverse possession is a rigorous legal institution, governed by the Italian civil code, which requires precise conditions and never applies automatically just because nobody has objected for a long time.

What the civil code says about common areas

Article 1117 of the Italian civil code lists, on a presumptive basis, the assets considered common to all unit owners: the land on which the building stands, foundations, load bearing walls, roofs, staircases, main entrances, courtyards and systems serving common use. This presumption of joint ownership can only be rebutted by a contrary title, meaning a deed proving that the asset belonged exclusively to a single owner from the outset. Without such a title, the only way for a unit owner to become the exclusive owner of a common area is precisely through adverse possession.

The requirements for adverse possession of condominium common areas

Simply using a common area more than other owners is not enough to claim adverse possession. What is required is qualified possession, meaning conduct that unmistakably demonstrates the intent to act as the exclusive owner, effectively excluding other unit owners from enjoying the asset. Case law requires three cumulative elements: continuity of possession for at least twenty years, as set out in Article 1158 of the civil code for ordinary adverse possession; exclusivity, meaning use that in practice denies other owners the possibility of accessing or benefiting from the asset; and visibility, meaning clear and recognizable acts that manifest this intent, such as closing off the space with a gate or wall, installing a personal lock, or carrying out works that permanently transform the area.

Why heavier use alone is not sufficient

A common mistake is assuming that using a shared space more frequently, for example always parking in the same portion of a courtyard or storing tools in a corner of the attic, is enough for adverse possession to mature. It is not. The Italian Supreme Court has repeatedly clarified that a unit owner's more intensive use of a common asset, if not accompanied by acts that exclude other participants from enjoying it, remains a use compatible with joint ownership and does not constitute possession suitable for adverse possession. In other words, as long as the other owners could still access the space, however rarely they actually do, the exclusivity required by law is missing.

The change from co-owner detention to exclusive possession

Another central concept is the change in the nature of possession, referred to in Italian legal practice as interversione del possesso. A person who holds a common area as a co-owner, that is by virtue of their own joint ownership right, cannot unilaterally transform that holding into exclusive possession without a legally relevant act that clearly signals to the other owners the intent to possess as sole owner. A new and recognizable act of conduct is therefore required, not simply the continuation over time of a use that already existed as co-owner. This principle, developed by case law on joint ownership and condominiums, explains why many adverse possession claims between unit owners fail: the qualitative leap in the possessor's conduct is never proven.

The burden of proof and the role of witnesses

Whoever claims adverse possession bears the burden of proving every required element, and this proof is never straightforward when common assets are involved. Documents are needed to establish the starting date of exclusive possession, such as invoices for transformation works, building permits, dated photographs or testimony from neighbors and suppliers who can confirm since when the space has been withheld from common use. Courts pay particular attention to verifying that the twenty year period was truly uninterrupted, for instance not interrupted by another owner's request for access or by an assembly resolution that reopened the question of the asset's intended use.

Heavier use of a common asset, on its own, does not turn joint ownership into exclusive ownership: what is needed is possession that visibly excludes the other unit owners.

What the property manager can do when such a case emerges

When a property manager notices that a unit owner is permanently occupying a common area, for example fencing off part of a courtyard or installing a door on a space meant to remain accessible to everyone, prompt action is advisable. Time works against the condominium in this matter: the longer the situation is tolerated without formal objection, the closer the twenty year term comes to being satisfied. A written notice, a formal request for removal or even legal action interrupts the running of the term and prevents the possession from becoming a basis for adverse possession. It is therefore good practice to document every objection in writing, even informal ones, and have it recorded in the assembly minutes, so there is reliable proof of the interruption date.

The practical consequences for condominium management

If adverse possession is confirmed by a court ruling, the asset permanently leaves the category of common areas, and the ownership tables, as well as the allocation of maintenance costs related to that space, must be adjusted accordingly. This is a change that affects ordinary management and requires careful accounting as well as legal attention. For this reason, relying on tools that keep track over time of objections, resolutions and photographic documentation of the state of the premises is a concrete help for property managers. AmministraPro allows minutes, communications and documents related to any unusual situation in the building to be archived in an organized way: those who want to understand how these tools can support day to day management can look at the features page, while the details on available plans are explained in the pricing section of the site.