The old Cadogan Building opened in January 2008 as a new music school. Academic standards are high; in 2006, the average points score by all Leaving Certificate candidates was 440 out of 625, and in 2007 this went up slightly to 442. In 2008 it was 424, in 2009 446, and in 2010 the highest yet at 459. Over the past five years the average has been: 442 points. Average class size is 12 pupils per teacher. The "Sunday Independent" newspaper has identified it as the most expensive school in Ireland.