Taking advantage of an abandoned space, such as a roof, and converting it into a living "green" space has many benefits. It better regulates the building's temperature, reduces air pollution, increases biodiversity and improves the environment. In addition, being surrounded by green increases general well-being, directly affecting the quality of life of the owners and neighbours. This is something that is becoming increasingly important as our cities become denser.

The intelligent use of space increases the resilience of a city. Barcelona is particularly dense, characterised by many terraces, balconies, and abandoned roofs. Formerly, these communal spaces were only used to hang clothes or for occasional celebrations. Today, architects must come up with practical solutions so as not to waste them. It is increasingly important to decongest our living spaces, creating safe green zones that allow people to enjoy views across the city.