Thanks for the comments fellas. Much appreciated. I saw it and drove past it at first, then thought, 'hang on a mo, that looks interesting' and drove around a second time which freaked a few builders out who were at the other end of back canning street.

Whilst I had parked up the Police stopped next to me and I though, 'here we go....'. Surprisingly they walked right passed me into this older building on Blackburne Street. I asked one as he walked past, 'Are you gonna stop me taking pics?' expecting him to say yes and he said, 'no mate, you're alright'. Nice copper.