Garage Boxes and Parking Spaces as Appurtenances in an Italian Condominio

The garage box as an appurtenance is a recurring situation in many modern Italian buildings, often built with an underground level dedicated to a garage and parking spaces assigned to individual units. Understanding whether a box or parking space is an exclusive appurtenance or a common part is not a formality: this qualification determines the rules on use, maintenance, cost sharing, and even whether the box can be sold separately from the apartment.

What the appurtenance bond means

Article 817 of the Italian Civil Code defines appurtenances as things permanently intended to serve or adorn another thing, through a bond established by the owner of the main asset or by whoever holds a real right over it. Applied to a garage box, this means the garage is an appurtenance of the apartment when a document, typically the purchase deed, specifically and permanently assigns it to serve the residential unit, regardless of where it is physically located in the building.

Boxes held as exclusive property

When the box is registered separately in the land registry and is the exclusive property of an individual owner, with its own cadastral sub-unit, that owner may dispose of it freely within the general limits set by the condominium regulation and by planning law. It can be used, rented, and in principle also sold separately from the apartment, unless an express appurtenance bond in the title prevents this or specific statutory provisions, such as those governing appurtenant parking under Italy's Tognoli law, restrict it.

Parking spaces as a common part

The situation differs when the area intended for parking, for example a courtyard or an underground level not subdivided into individual cadastral units, remains common property and is simply assigned for use to the owners, perhaps by an assembly resolution or a regulation provision. In that case there is no appurtenance in the technical sense, but a regulated use of the common asset under Article 1102, and the parking space cannot be sold or transferred independently of the apartment because exclusive ownership of it was never transferred.

The practical difference between the two situations

• An exclusively owned box has its own cadastral sub-unit and can be bought and sold independently, subject to specific restrictions
• A parking space on a common part remains collective property and its assignment can be changed by the assembly
• Routine maintenance expenses for an exclusive box fall on the owner, while structural building expenses follow the general ownership shares
• Expenses for a common parking area are shared among all owners according to their ownership shares, unless a different criterion is resolved

Expenses when the box is an appurtenance

Even when the box is an exclusive appurtenance, it still sits within a condominium context: the load-bearing structure, the shared systems running through it, and the shared driveway access remain common parts in every respect. Routine maintenance costs for the individual box, such as painting or minor internal repairs, remain the owner's responsibility, while expenses relating to common structural elements, for example the roof of the underground level or a centralized ventilation system, are shared according to the general ownership shares or according to specific sub-condominium shares for the boxes, where they exist.

The condominium regulation and garage boxes

The condominium regulation can govern the use of the boxes and shared maneuvering areas, for example banning the storage of bulky materials in the driveway or setting hours for the automatic gate. However, unless it is of a contractual nature and accepted by every owner, it cannot limit the exclusive property right over the box itself, for instance by preventing it from being leased to third parties who are not owners in the building.

Selling the box separately

Whether the box can be sold separately from the apartment depends on the origin of the title and any planning restrictions. Parking spaces built under the incentives of the Tognoli law, for example, are subject to use restrictions that can limit their transfer separately from the residential unit for a certain period. It is therefore always advisable to check the deed of origin and applicable planning rules before proceeding with an independent sale.

Why the qualification matters for the property manager

For the property manager, correctly distinguishing between an exclusively owned box and a parking space on a common part is essential for setting up cost sharing, the condominium register, and requests for use or transfer correctly. A misclassification can trigger disputes over budgets and parking resolutions. A management platform like AmministraPro helps the property manager keep separate millesimal tables for boxes and common areas: the relevant tools are described on the features page, and the cost of each plan is listed on the pricing page.