A few months ago, looking for a flat in which to become independent, I found a very small studio but spacious enough just for me. I think it was not enough to measure 40 square meters and the only thing that was isolated was a small bathroom (fully equipped, of course), and the entrance next to a small hallway. The rest of the house was distributed in a single room: kitchen, living room and bedroom.
The truth is that I liked it a lot, although it would be necessary to make a few changes, although not all that I would like. At first, if the study were mine, I would make a small reform to raise the bed or bedroom. Any of these ideas that I have seen in Freshome It would serve me.
In this way, the meters that will remain in the "floor" will be only for kitchen and living room, leaving many more space for leisure.