Where I live they are trying to do the same. Sadly the shape of the building do not work well for housing. There's more inside dark areas than window accessible areas. The proposal was to make a "community area" towards the centre of the building which is a terrible idea. The alternative is converting the inner area to apartments without any sunlight, which isn't going to work even if it's legal. The building sits empty because nobody can provide a good idea how to use it.