The sustainability hub is an innovative space for gathering, integration and connection, which answers the necessity of communicating the new sustainable techniques of production of the coffee capsules realized by Lavazza. The structure is connected also with its context, the one of "Cascina Cuccagna" a project of the consortium of Milanese associations that has taken an historical farmhouse of 1695 from abandonment, transforming it in a new public space, a multi-function center of initiative and with community involvement. The participation and the cultural exchange connect the two structures in a way that allows the newly built space to be an extension of the farmhouse. The project create a dialog with the existent farmhouse both from an esthetical and functional point of view, taking the farmhouse typology and giving it a visible permeability and a spatial one. The traditional volume of the greenhouse is broken from irregular openings which provide the inside with light "cuts". These openings create new views towards the farmhouse and on the 1700s wall. The Sustainability Hub was studied to show and to contain the cycle of decomposition of the innovative coffe capsule by Lavazza, which once composted can give life to eatable mushrooms. For this the structure is a fusion between two spaces climatically opposite: on one side humid to host the reproduction of mushrooms and on the other side tropical to allow the survival of the coffee plants.