Mavis Avenue floorplan
This is not up to date but will give you a very good idea of the layout. There is a lot of wasted space throughout and ancient bathrooms that have had toilets disabled to save water costs but not much else as far as improvements. There are maybe 3 luxury apartments that have incorporated the room next door but nothing really "proper".
There is a real danger of cooking in rooms and I doubt that permits have been issued for a lot of what I have seen on a quick walk around. Corridors and hallways full of overflow possessions that would be an obvious fire hazard and so on.