Diller Scofidio + Renfro is an interdisciplinary firm, who in their own words, ‘straddle architecture, urban design, visual arts and the performing arts’. Seemingly constantly creative, they have turned their attention to the concept of an Eco House, working with Atelier Ten, an environmental design firm. Named the Phantom House, the conceptual home is owned by a conceptual couple – J, who is an engineer working for a software-development firm, and M, who is a consultant for an Internet marketing company. This very now couple live in a ‘guilt-free, sustainable luxury house that thrives on excess’. By transforming redundancies into efficiencies, the inhabitants and the house form a feedback loop, in which energy produced in everyday activities can be banked and later reused. A remarkably well-presented and considered eco proposal, it is one of the few that attempts to tackle the weakness of us all – our consumption – head on and then turn it into a fuel.