Circular economy is a general concept running counter to our actual linear economic model as it reaches its limits: a system created on the consumption of our Planet's resources as if they were unlimited - take, make, dispose - is falling apart as the population is rapidly increasing. Furthermore, we are witnessing a slow evolution towards more natural lifestyles as a worldwide desire to respect and preserve our Planet is spreading. In architecture and urbanism, OUI apply a set of criteria to the project’s specifications giving the way to technical solutions. These requirements cover the entire spectrum of a building’s attributes, from the chosen materials to the evolution in time of its spaces, while minimizing the use of waste, emissions and energy leakage. OUI are currently working on a methodology that will set specific rules in order to design a Circular House.