Contemporary Ruins are the visible part of the overproduction in the construction industries. The European economy, organized in the form of a chain market, overproduces at all stages. From the constant creation and discard of construction materials, caused by strict checking and over-regulated safety and quality. To the approaches to producing the spaces that surround us, delivered completely finished and pre-designed beforehand and therefore rarely according to the rapidly changing real needs of users. Over the past two years, Roca researched how this system works. Making use of legal grey zones to obtain materials in perfect condition, discarded by construction companies, underpinned the production of the collection. Roca illustrates how sustainability is a matter of operations and behaviours not merely a matter of architectural design and technology.