The proposal for the design of Syntagma Square, the main public square in the city of Athens, loaded with history from the inception of the Greek state to contemporary history, adopts measures that re-align its axes and bring passive cooling design elements and a wider variety of social uses of the public space. These include: introducing an important implicit axis crossing the square, which connects the Lycabettus hill with the Acropolis, the use of water and shading features in order to generate a variety of environments of different temperature and privacy levels in a relatively limited public ground, the intertwining of various functions, such as passage, metro stop entries points, leisure and space used for public functions and the introduction of new layering system that would operate both horizontally and vertically, in order to alter the existing division of “upper” and “lower” public space.