Christian Schallert 258 square-foot apartment is one strong example of how we can use our living spaces efficiently. It has got all things from shower and bathroom, utilities such as dishwasher, stove and fridge, cupboards for clothing, portable bed and sofa, dining table all hidden behind the walls.
His inspiration to building such kind of place is living boats. I wonder how much money had he spent for building this space. Anyways, a nice idea to keep you active and fit while you slide and fold everything out of sight.