Water is the most fundamental constituent of life in our planet. Human nature, as any other form of life, is inextricably linked to it, since water is one of their constituents as well as a vital for their survival element.

The quantity of water that is being consumed every day for our miscellaneous needs does not chime with the one that our planet can withstand and manage to replenish through the hydrologic cycle. This incontrollable consumption leads to an instability in the planet’s water balance. That is, the quantity of water that is being received and stored is perceptibly smaller than the one that is finally consumed.

In the field of bioclimatic architecture, major attention is drawn to energy saving, rather than water saving. In the future, this is about to change because the need to save water will become more urgent than it is nowadays.

The aim is to introduce suitable systems, not only in the domestic environment but also in the broader urban one, which will contribute to a reduction in the consumption of drinkable water supplies on the planet. Such systems, which include the collection of rainwater and the reuse of grey water, deploy rainwater and recycle an amount of water already used in a house so that it can be utilized in irrigation etc.