The structure contains 1,100 rooms in a total area of 49,000 m2. The main stage is 16 meter wide and 40 meter deep. The angled exterior surfaces of the building are covered with marble from Carrara, Italy and white granite and make it appear to rise from the water.
The roof of the building angles to ground level, creating a large plaza that invites pedestrians to walk up and enjoy the panoramic views of Oslo. Construction started in 2003 and was completed in 2007. The gala opening on 12 April 2008. During the first year of operation, 1.3 million people passed through the building’s doors.
The Opera House won the culture award at the World Architecture Festival in Barcelona in October 2008 and the 2009 European Union Prize for Contemporary Architecture.