Architecture has assumed a vital role in our society since the birth of the first huts thousands of years ago. Home is the place where we feel more protected and where we share the most important aspects of everyday life. For this reason, architecture plays a crucial role defining the quality of life, whether we choose to live in the city or in a forest. The traditional architecture has always made elitist the ability to take advantage of the best housing conditions possible, relegating these privileges only to a narrow range of people and letting anyone couldn’t afford it, an environment where the functionality, livability and beauty have always been left in the background (especially in the third world). The open source architecture aims to create environments that have nothing to envy to those of traditional architecture, but with numerous advantages in terms of cost, sustainability and livability. It’s open to new construction techniques and innovation and puts, as it should be, in first place the man and not the business.