During the process of base wall deconstruction and render removal, significant structural issues were uncovered. It was revealed that sections of the structure were cast hollow, contributing to widespread deterioration. The affected areas ranged from the rotunda base with known areas other areas affected extended to various columns, plinths, and capitols, previously believed to be in good condition. Prior to re-concreting, all problematic zones were reinforced and stabilized. The new render was traditionally finished with Ashlar joints and coloured pointing to replicate the original. Upon the removal of the ceiling for inspection, repairs became necessary for the decayed sections of the ring beam rafter supports and the replacement of lead flashing at the roof and ring beam join. All structural interventions were adhered to using traditional methods and in line with the principles outlined in the Burra Charter.