It just had enough height - full width dormer on the rear - which gives some 'full height' space in the bedroom and a full sized (and height) ensuite bathroom. Placing a low level bed under the sloping part of the ceiling also helps. Staircase position is also critical - ensuring that it arrives in the middle of the floor plan.

Thanks for taking the time to reply.

You're welcome, we're always happy to discuss our projects.