Architect Jacob Szczesny has designed what may be the world's narrowest house, which fits neatly into a small gap between two pre-existing buildings. It's intended occupant is writer Etgar Keret.
I'm not sure why the design is triangular, as from photos it seems like there's plenty of room for a rectangular house which would provide more space.
Also, I suspect the remote control stairs which flatten when raised to make a level floor space will be a mixed blessing. No object (or person) could be left on that area of the floor as surely it (or they) will go flying whenever anyone wanted to leave the room. Still, it might be an effective method of ejecting unwanted guests.
The first floor is reached by a ladder surrounded by an alarming hole in the floor. Where does the occupant store clothes, groceries etc? There doesn't seem to be a washing machine but then is it described as a workplace (and an art installation) rather than a home - though it does have a double bed, a silent comment, perhaps, on the artistic temperament in general. Has anyone tried carrying bedding up a vertical ladder? One solution would be to hoist clean sheets to the bedroom via a basket on a rope. Certainly this would be less hazardous.
I've no idea how the top floor is reached as the ladder seems to stop half way there.
The design reminds me of an extended version of those Japanese capsule hotels where people sleep in a glorified locker. It might be tolerable for brief periods of time but I would politely decline any offers of an extended stay!
View the design: http://www.archdaily.com/152505/keret-house-centrala/