I would probably do one row of shallow and one row of deep ones, thinking to fix them to each other with a simple screw on bracket. I'm not sure they could topple could they?
Here's my attempt at a drawing! It's on the plans, the solid black suggestion is the architect's, that we get a custom built one. I'm not convinced as I think it would be easier to have Ikea standard as we can adapt it as we use it. This will be the only "storage" in the flat, so I need to maximise it. It will have to take the bed linen, towels, spare duvets, sleeping bags etc etc as well as our clothes.
Would you leave open, or want doors (are curtains a viable alternative?) on it? Would the shelves and clothes get dusty? It's marked on the plans as a walk in wardrobe area, but is in effect a mini corridor to the bathroom.
Would you bother with a (sliding) door to the bedroom?
The only thing that bothers me is a) the back of the cupboards, we'd have to hide the visible ones somehow and b) the lost 10 cm of the corner cupboard, so the widths won't match up.