From a pragmatic point of view, the building, in the broadest sense of the term, is built according to its sole purpose. Some architectural or decorative liberties can be taken, but a factory remains a factory and an office building is optimised to accommodate offices.In this case, urban planning will consist of simply allocating zones based on purposes, with the aim of creating the necessary conditions for the development of these territories. The issue related to the waveforms (see article on housing) of these constructions is not the only one. The concentration of buildings leads to other issues such as air pollution, noise pollution, traffic congestion, planned obsolescence of structures that cannot easily adapt to new uses or are simply not designed for longevity. The impact on people’s health is very significant and directly linked to these major issues. Numerous pathologies, including respiratory conditions, stress, immune system deficiency, chronic fatigue, and depressive states, are proven consequences of these issues. These manifestations typically occur in the short or medium term. Everything that is constructed should be able to evolve and contribute to the well-being of those who inhabit them, as well as to the well-being of their environment.