MEB Design were appointed as Architects for the third phase of development at the school. The phase included a new Humanities Department, new Sanatorium, Library and the Theatre.

The theatre seats 350 in the raked seating and the floor level can extend at the same level as the stage through the whole auditorium if needed. The Theatre connects via a link into the Music Department so all the performing arts provision is inter-connected.

There is a spacious, large Dance Studio and Music Ensemble Room within the link.

A Technical Gallery allows safe access to lighting positions and for other technical purposes for the pupils and staff.