The last step of the strategy is to build in the gaps. This requires five distinct phases. In the first place, it will be necessary to enable the base that has to receive the new building, either with the insertion of sanitation and foundations to the plot of vacant lots or free spaces as well as with the constructive preparation of the buildings to be traced and its eventual structural reinforcement .
From here, three constructive phases will happen, which can be designated as "black work", "gray work" and "white work".
The "black work" includes all those prefabrication operations in the factory that are used to prepare modular moveable elements, which will include the structure, the cover or the facade closures. This phase can be started while developing the necessary bureaucratic procedures for the obtaining of the license and finishes in the moment in which the prefabricated elements are arranged in work, in a very reduced time.
The "gray work" and the "white work" are based on small constructive operations that are within reach of the small scale productive fabric. The first consists of the finishing of the common elements of the building and its main facilities. It is developed from the hiring of local professionals and small and medium-sized enterprises.
The "white work" consists of the participative configuration of the common spaces by the future users and the possibility of leaving the residential units unfinished, to reduce their construction, also to avoid programmatic distributions that do not adapt to the real needs of the future occupants. The users who can and want it, they will make their own homes finishing them with their own hands, counting on the advice of the workshops of assisted DIY .
The last phase includes all maintenance tasks and even eventual dismantling of the building, which will also be based on the principles of circular economy, sustainable waste reduction and the redistribution of opportunities between small hands.