In 2003 the College celebrated its 150th anniversary by completing a £2.8million pound refurbishment in which individual study bedrooms with ensuite facilities were added. Alister E McGrath, Professor of Historical Theology at the University of Oxford gave a public lecture entitled 'Renewing our vision for the future of Protestant Christianity in Northern Ireland'. Bill Addley retired as Professor of Practical Theology in 2006 and the vacated chair was filled by Drew Gibson. Cecil McCullough, Professor of New Testament, who served as Principal from 1998-2002, retired in 2007 and was succeeded in the chair by Gordon Campbell.