Practical regulations
Managing the use of the common terrace
The common terrace is one of the areas that generates the most disputes in Italian condominiums, because it combines daily use, structural safety and cost allocation. Who can dry laundry, place plants or garden furniture, and who pays for waterproofing when the terrace also covers apartments below, are recurring questions that common sense alone cannot resolve. The correct answer comes from combining article 1102 of the Italian Civil Code on the use of common property, the condominium bylaws where they exist, and the cost allocation rules tied to the terrace's function. This guide explains, step by step, how to organize orderly use of the common terrace, prevent the most frequent disputes and correctly distribute maintenance costs.
The guiding principle: article 1102 of the Civil Code
Article 1102 of the Italian Civil Code establishes that every co-owner may use common property, including a common terrace, provided they do not alter its purpose and do not prevent other co-owners from making equal use of it according to their right. This means a co-owner cannot permanently appropriate a portion of the terrace, cannot install fixed structures without the assembly's consent, and cannot block access for other entitled parties, even when access runs through their own unit.
The limit of equal use does not mean everyone must use the terrace at the same time or in the same way: it means no one can exclude others from the possibility of doing so. For this reason, permanent installations, roofed structures, masonry gazebos or fencing that carve out an exclusive portion require an assembly resolution and, often, the consent of all co-owners if they alter the building's architectural appearance.
Condominium bylaws: the concrete source of usage rules
The Civil Code sets general principles, but it is the condominium bylaws that translate them into concrete, verifiable rules: hours of use if the terrace is a shared recreational space, bans or limits on barbecues and heat sources, management of plants and pots that may burden the structure, and rules on pets if the terrace is used by several households.
A good set of bylaws clearly distinguishes between a privately owned terrace that also serves as the building's roof covering (where the owner has full use rights but specific maintenance obligations toward the condominium) and a genuine common terrace accessible from multiple units or shared spaces. Confusing these two regimes is the most frequent cause of disputes: before intervening, always check the purchase deed and the bylaws to see which category the space belongs to.
Structural safety and the property manager's responsibility
A common terrace is often also a roof covering, therefore a structural element protecting the apartments below from water infiltration. Under article 1130 of the Civil Code, the property manager has a duty to oversee the state of conservation of common parts, and this includes the terrace: periodic checks of waterproofing, drainage, flooring and parapets, with particular attention to fall protection, are part of ordinary management.
When the terrace also serves as a shared recreational space, safety must also account for load capacity: heavy furniture, large planters or accessory structures can exceed the loads foreseen in the original design. When in doubt, a technical assessment before authorizing certain uses protects the condominium from civil liability in case of damage.
Maintenance and cost allocation
Cost allocation for the terrace depends on its function, following the criteria of article 1126 of the Civil Code when the terrace acts as a roof covering for part of the building: whoever has exclusive use contributes a larger share to ordinary maintenance of the flooring, while waterproofing and structural conservation costs, which also protect the apartments below, are split among all co-owners according to their millesimal shares, with the specific proportion set by the rule for those who have exclusive use.
For common terraces without exclusive use, allocation instead follows the general ownership millesimal shares. Clearly documenting every intervention, from small maintenance jobs to full waterproofing works, is essential to avoid disputes: management software that keeps separate track of expenses by purpose, such as AmministraPro, helps the property manager produce reports consistent with legal criteria and respond quickly to co-owners' requests during assembly meetings.
Frequently asked questions
Can a co-owner place plants or furniture on the common terrace without asking permission?
Ordinary, non permanent use, such as potted plants of reasonable size or light furniture, generally falls within the right of use granted by article 1102 of the Civil Code, provided it does not prevent equal use by other co-owners and does not compromise structural safety. Fixed installations, permanent structures or elements occupying a significant portion of the space instead require assembly authorization, since they may alter the shared purpose of the space.
Who pays for waterproofing a terrace that covers the apartments below?
When the terrace also functions as a roof covering, article 1126 of the Civil Code provides that maintenance and reconstruction costs are split among all co-owners of the building according to their millesimal shares, with an increased share for whoever has exclusive use of the terrace, if such exclusive use exists. The logic is that the covering protects the entire building from infiltration, so the benefit, and the related cost, concerns all the owners below.
Can the condominium bylaws completely ban use of the common terrace?
The bylaws can regulate hours, methods and limits of use of the common terrace, but cannot completely ban access for an entitled co-owner, since that would violate the principle of equal use under article 1102 of the Civil Code. An absolute ban would be challengeable in court as harmful to individual co-owners' rights over common property.
Is an assembly resolution needed to install a roof or gazebo on the common terrace?
Yes. Fixed structures such as roofs, masonry gazebos or permanent coverings change the purpose of the shared space and can affect the building's architectural appearance, so they require an assembly resolution with the majorities set for innovations and, when they alter the building's external appearance, may require unanimous consent or reinforced quorums depending on the bylaws and specific situation.
How can terrace maintenance costs be tracked transparently for co-owners?
Clarity comes from documenting every intervention along with its allocation share, distinguishing ordinary maintenance costs from extraordinary ones tied to the roof covering function. Condominium management software such as AmministraPro allows organizing these items by individual common part and producing consistent reports, reducing disputes during assembly meetings and easing the property manager's work, features worth evaluating among the available functions and pricing.
Try AmministraPro
Accounting, thousandths-based cost splitting, meetings, communications and artificial intelligence in a single Italian software, compliant with UNI 10801 and GDPR.