On 20 February 2012 Pope Benedict XVI elevated him to Archbishop of Perth , Western Australia .
Bishop Tim Costelloe SDB was appointed as an auxiliary bishop in April 2007 with responsibility for the northern region of the archdiocese .
On 20 February 2012 Pope Benedict XVI elevated Tim Costelloe SDB to Archbishop of Perth , Western Australia .
Bishop Tim Costelloe SDB was appointed as an auxiliary bishop in April 2007 with responsibility for the northern region of the archdiocese .