Enviu selected Emerging Ghana by Ana Morgado, João Caeiro, Lara Camilla Pinho, Maria de Paz Sequeira Braga and Maria de Carmo Caldeira, from Portugal, Mexico and Brazil, as the winner of the Open Source-House competition. The materials used are bamboo and dahoma, a local wood, for the modular and lightweight panels. These are held together with strong rammed earth walls. Due to the modular design, inside and outside spaces can be created depending on different needs and environments. Natural ventilation is archived throughout the building, due to the earth walls that keep the spaces cool and shaded areas.