Meet The Cube Project, an initiative of Dr Mike Page at the University of Hertfordshire who set out to build a compact home, no bigger than 3x3x3 metres on the inside, in which one person could live a comfortable, modern existence with a minimum impact on the environment.
Made from a variety of sustainable materials, the Cube provides everything that a single person (or two friendly people) might need, with a table and two custom-made chairs, a small double bed (120cm wide), a full-size shower, a kitchen (with energy-efficient fridge, induction hob, re-circulating cooker hood, sink/drainer, combination microwave oven and storage cupboards), a washing machine, and a composting toilet. Lighting is achieved by ultra-efficient LED lights, and the Cube is heated using an Ecodan air-source heat pump, with heat being recovered from extracted air. It has cork flooring and there is two-metre head height throughout. See the video here.
A great idea. I would like to see many of these cubes scattered around