Installing AC on facades requires community permission in Spain

Installing an air conditioning unit on a building's facade in Spain requires prior authorization from the homeowners' community, according to the Ley de Propiedad Horizontal (LPH). Both sources confirm that Article 7 of the LPH prohibits alterations that affect common elements or the building's exterior appearance without permission Source: elconfidencial Source: elespanol.

The legal requirement

The LPH's Article 7 states that owners may modify their property as long as it does not compromise safety, structure, or external configuration, but must notify the community representative beforehand. A lawyer from Millennials Abogados, cited in both articles, clarifies that installing an outdoor unit on the facade "affects common areas" and thus requires community approval Source: elconfidencial. The lawyer explicitly says "the answer is no" when asked if a neighbor can freely install a unit on the facade Source: elespanol.

Exceptions

The permission is not needed if the unit is placed in a private area that does not alter common elements or building aesthetics—for example, an interior terrace. Additionally, if the community's internal regulations explicitly allow such installations, permission may be unnecessary Source: elespanol Source: elconfidencial.

Consequences and local rules

Ignoring the requirement can lead to fines of up to 3,000 euros, though these amounts are not universal; they depend on municipal ordinances, especially in protected buildings or areas with specific rules Source: elconfidencial. For instance, Barcelona bans visible AC units on main facades and protected buildings Source: elconfidencial. Moreover, the owner may be forced to remove or relocate the unit.