GRID, Carter Williamson Architects, 2012

Envisioned as emergency housing for after tsunamis, this steel prefab from Australia arrives flat-packed and can be assembled in four hours. With solar panels and rainwater tanks, it's possible for it to house up to 10 people in a pinch.  Seriously Tiny (and Slightly Strange) Hangouts That Push the Limits of Micro-Living by Luke Hopping