Xavier Ros Majó was born in 1972 in Sabadell (Barcelona), architect for ETSA Vallès in 1998. Professor for Architecture Projects in ETSA Barcelona since 2010 and Guest Professor in ESARQ-UIC (International University of Catalonia, Barcelona). On 2010 creates the blog arquitectures234.blogspot.com With David Lorente, Josep Ricart and Roger Tudó on 2000 he founded HARQUITECTES. Their works have received many awards for built projects and also in architectural ideas competitions and it have been published in national and international Medias. They’ve invited to give lectures nationally and abroad.