Less than twenty years after its founding, the Academy's population had outgrown the building. All available space, including the Reception Parlor, the Faculty Dining Room, and several music rooms, had already been converted to classrooms. In 1955 construction began on an addition, initially to be named DeChantal Wing, but ever after known simply as "The Wing." When the new wing was opened in 1957, the capacity of the Academy was doubled. The original Cafeteria, "DeChantal Hall", was redesigned into a new seven room Music Complex, the original Locker Room became the ten room Guidance Complex, the Reception Parlor became the General Office, a new Biology Laboratory, a new Cafeteria, a Board Room, a Home Economics Complex, a new Locker Room and many classrooms were added. The new construction also added a third wing to the convent, in order to house the additional Sisters needed to staff the enlarged Academy.