John McAslan & Partners has beaten seven other practices in a competition to design new facilities for the Welsh College of Music and Drama, to be built in the shadow of Cardiff Castle.
The project, to be sited in the castle grounds, will include a 500-seat recital hall, 200-seat theatre and a range of teaching and practice facilities.
College principal Edmond Fivet said it was McAslan's 'creative and energetic proposals' which made it the unanimous choice after the competitive interview. He added that the team's 'stimulating and impressive ideas' met the challenges of the site and dealt with the problem of remaining open while construction is under way.
The practice has experience in the sector, having remodelled the Grade I-listed facility at the Royal Academy of Music.
The college moved from Cardiff Castle to purpose-built premises in the grounds in 1974, and restored the Anthony Hopkins Centre - a mews named after its most famous theatrical son and opened by Prince Charles - two years ago. It hopes to start work on site on the new project next year.