After a meeting with my tutor I realised that picking the most horrible building around for my site wasn't the best plan because, although it gives me a totally blank canvas to work with it also means there is only a certain amount of potential to be drawn out and I feel I still wouldn't be totally happy with the result in the end.
For this reason I have picked a new building, one with a lot more potential. It is between Vauxhall and Kennington in London. Here it is:
I will do further site analysis and draw up more detailed plans based on the ones provided, then I can get to work on the beginnings of the design!