Showing just what's possible in this format, the Duffy Shelter can be constructed in less than an hour and up to 35 of them can be transported in a single van.

The shelter is designed by London-based studio Duffy London, which also fabricates them, and came about after company founder Chris Duffy was asked to volunteer for a day building emergency shelters. Although he enjoyed the day, Duffy felt that the shelters that he and the group were building simply weren't practical, with too many fiddly parts, lengthy construction times and too much bulk for easy transport.

That day, says Duffy, he committed to designing a shelter that would address these issues and he's been working on the design for the past year-and-a-half. The result is a raised, pod-like structure measuring 185 x 125 x 142 cm (73 x 49 x 56 in) that can sleep two adults and be assembled using only a screwdriver.