 In 1973, the central altar and lectern were added to the sanctuary and the redesigned sanctuary was consecrated on 12 August 1973.In 1995 the Heritage Council of Western Australia noted that the original 1865 portion of the structure was suffering from falling damp and cracking in the walls, and the mosaic floors in the sanctuary were also cracked.Further deterioration of the cathedral by the end of the 20th century meant that decisions had to be made in relation to the repair and completion of the original design.