Not sure if this has been posted yet but here is an elevation of the building from hpwatersidecentre.ca:
This is a great example of reuse that I mentioned a while ago in another thread. The Imperial Oil building is worthy of preservation, but it does not necessarily make sense to keep it completely intact as a two-storey building in the heart of the downtown core. By building offices on top we get the best of both worlds.
It will also be nice to have the empty lot filled in, and this will pair nicely with some of the work that has been done on the Morse's Teas building. If the Waterside Centre is built this will be quite a nice block.