Here is an interesting project where there are No living rooms within the apartment. Consist of 2 floors,
Bottom floor: Master bedroom, reading/study/future kids room, and a full size kitchen with a central island.
Top floor (the attic space): initially for guests, but it more of a multipurpose studio space. within the glass box is a space for shower and toiletry. and in front is another central island/counter top work space.

The client is a active artist, pastry cook instructor. her and her husband uses the space also for entertaining friends and family, reading space, or for studio work.