This concert hall is located in Andermatt in the Swiss Alps. BESIX and the Andermatt Swiss Alps development is transforming the traditional Swiss Alpine village of Andermatt into one of the world’s finest year-round destinations; boasting some of the best alpine and off-piste skiing facilities in Europe and fast becoming one of Switzerland’s largest resorts. Andermatt’s new village square will host multiple hotels, residential and chalet facilities, and as part of this new development, Studio Seilern Architects was asked to provide a world-class concert facility to be located at its heart. The project transforms an existing underground space that was originally intended to be used for conventions and events for the hotels nearby. Initially, this concrete box with an effective volume of approximately 2,000m3 was primarily intended just for conferences and conventions. Studio Seilern Architects has proposed to lift a large section of the existing roof to double the effective acoustic volume up to 5,340 m3, increasing the total capacity to able to host 75-piece full symphony orchestra and a total of 663 audience seats.