Pallets are available worldwide and used in different ways, e.g. for transport with railway cars, ship containers and trucks. At the end of their life cycle -after transportation- they are usually burned. Hence, it is of global concern to find a follow-up use for them. For building a 60m2 pallet house, 900 reconditioned pallets are needed. The pallet is used as detachable façade element, ceiling element, wall element, as blind and as sunscreen. The space between the pallets contains beams, insulation, cables and lighting. Due to the use of 900 recycled pallets for the basic structure and of cellulose or sand as insulation, the building is highly ecological and sustainable. The need for other materials is reduced to a minimum. Pallet houses could replace low-cost shelters in slums and in refugee camps, which could be built easily by locals with local materials. Today popular for transport only, in the future pallets could additionally become a construction element for poor and for rich.