Spurred on by your lovely comments I've finished the master bedroom and converted what used to be the wasted space of the staircase into a dressing room. Because the carcass had half-landings built in the only way round this problem was to add a false wall in front of the landings resulting in a small but functional area. The false wall in this room is meant to look like a wardrobe :)
I'm not sure that the style of furnishing in these rooms suit the overall feel of the house but until I revamp the other set of furniture I have it'll do for now.
Hope you like it so far! Back soon x