Architect. He works in the development of projects of ecological cities and buildings all over the world with his company Guallart Architects. He was chief architect of the city of Barcelona (2011-15) leading major transformations in the city. He is founder of the Institute of Advanced Architecture of Catalonia (2001) where he is currently working on the development of biocities at Valldaura Labs centre. He recently won a competition to build Barcelona’s tallest wooden house. He is one of the promoters of the Barcelona European Forest City 2022.