So you are stuck in the middle of the building – not on the top, where you might build up, or on the bottom, where you could sprawl out. Your unit faces out in only one direction. There is nowhere else to go.

Stefan Eberstadt claims otherwise, with his Backpack House project that has now hung from the sides of multiple residential structures to expand occupiable space.

The idea comes as a response to cramped quarters the artist/builder has experienced in major cities including London and New York, where at times you are limited to as little as one outward-facing window. By way of contrast, all kinds of viewing ports are sliced into the sides, bottom and top of this curious cube, affording neat views (at least until your neighbor expands with his own cube, that is).