Prior to the commencement of the demolition works, the enabling part of the contact works it was undertaken to soft strip the existing buildings and retain the main structural elements. This involved the existing finishes including all M&E services, together with removal of any identified Asbestos Containing Material by specialist licensed contractor. Also during the works Lead based paint was discover on the soffit of all the floor slabs and a Specialist was contracted to remove the material using a sand blasting process, because the building was been reoccupied air test had to be taken after the asbestos and lead paint removal to prove there was no air born particles left in the building.