Pop-Up House meets the very exacting Passivhaus energy standard (Photo: Elisabeth Montagnier)

Whatever kind of home you live in, the chances are it took longer to build than the Pop-Up House, by French architecture firm Multipod, which was erected by a team of builders in just four days with no more tools than a screwdriver. The firm likens the construction process to building with Lego.

The Pop-Up House is a prototype prefabricated home that Multipod aims to bring to market for around €30,000 (roughly US$41,000). Thanks to its excellent insulation and near-airtight thermal envelope, no heating is required for the home in its location in Southern France, and it meets the very exacting Passivhaus energy standard.