Ellen van Loon joined the Office for Metropolitan Architecture (OMA) in 1998 and became partner of OMA in 2002. She is currently leading the project of the Casa da Musica, a concert hall in Porto expecting completion in 2004. Furthermore, she is overseeing the construction of the Dutch Embassy in Berlin and was a project architect for the development of the Universal Headquarters Building in Los Angeles, as well as for the MAB towers in Rotterdam. She is a technically skilled architect and as a director involved in the production and execution of many OMA projects. Prior to working with OMA, she spent several years with Foster and Partners on the design of the German Parliament, Reichstag in Berlin. In 1991 she received her diploma in architecture from the Technical University of Delft in the Netherlands.