or steel—framed - building clad in stone. so very simplyjust cut the stone out of the body, transport and erect on site - and that is it. so, essentially, you have created a very high—tech building that has the appearance of a ruin. i guess so, yes. inside is equally natural. and this is your flat we're coming into? yes, straight in. that is some view. st paul's out there and we can see the stone. that is correct. that is our limestone exoskeleton. - so the outside is all stone, inside, all european oak, l timber. is that to make it carbon neutral, carbon—negative? so if you remove all- the aluminium partitions, plasterboard lining, - replace it all with timber frame and timber itself- as the finish and then any wet areas, more stone.