The project applies the principle of permeable configuration of blocks. This consists in fragmenting the built masses in the Sablon Centre area and creating North-South openness and transparency by means of landscaped gaps above the continuous plinth. The buildings are modelled like an archipelago of landscape buildings, freeing both North-South and East-West visual perspectives. The buildings have a high-performance envelope, covered with prefabricated fibrous concrete facing panels. Windows are flush with the internal face of the external wall and are stressed by an anodised aluminium frame. The continuous lines of loggias facing due south are protected by sliding screen-printed glass panels. In this new entirely pedestrianized public district, there is a mix of different types of buildings, but also a mix of uses and especially of different people, from public transport users to strollers, local residents, office workers, passing tourists and local shopkeepers. The fragmentation of the built masses on the ground and the creation of transverse public passageways increases the length of shop window frontage and the mutual visibility between shops. The sculpting of the building masses creates a degree of complexity, expressing a very richly varied living environment. The buildings provide accommodation with a wide variety of configurations and facing in many different directions.