Living sustainably can have so many different meanings from one person to another. But there’s no denying that this Optimal Traveling Independent Space (OTIS) has got sustainable design and living down to a science. With tiny mobile spaces becoming more of the norm, Green Mountain College of Vermont’s academic design program created their 70 square foot living system on the back of a standard size (5×8) trailer.
The outcome is a sweet little wood unit that travels well on the back of a minivan and is pretty much self sustainable. The interior components include: a composting toilet, a rainwater collection system, and a single 120-watt solar panel to provide electricity. This all is enough space for a single person to live in for right around $2,000. It can all be towed on the back of a 4 cylinder vehicle and keep itself running due to the creative minds of 16 design students who were up for the challenge.