The then 235-seat auditorium, designed by architect Tim Foster and theatre consultant Iain Mackintosh, was modelled on the Georgian Theatre Royal in Richmond, Yorkshire. It was built using free-standing system-scaffolding that supported padded benches rather than individual seats. The pre-existing proscenium arch was in front of a stage so shallow as to be almost useless, so a large apron was built to take the acting area out into "the courtyard", leaving the old stage as almost a backstage area, frequently unused in productions, but leaving the theatre with the oddity of a proscenium arch framing a small rear, inner acting area.