Six Weeks: This 1,000-square-foot steel-framed weekend retreat outside of Joshua Tree is a "hybrid prefab" prototype fabricated in a factory but assembled onsite. This home was built in eight weeks for $325 per square foot, but the process has taught its builders to complete future projects in about six weeks for $265 a square foot.
19 Days: New York City's tallest prefab added 28 affordable housing units to an infill site in just 19 days by combining a number of factory-made modules into a variety apartment configurations.
10 Days: Architect Stefano Girodo designed this “completely prefabricated and modular structure” to ensure easy mechanical assembly on site. As a result, the building, which houses a ski school, was completed using recyclable and environmentally friendly materials in just 10 days.
10 Days: At just 100 square feet, tiny Bunkie prefab structures don’t require permits for construction and can be assembled in just a week and a half.
2 Days: Swedish architect Jonas Wagell created a 160-square-foot cabin called the Mini House 2.0, which comes flat-packed and can be built in just two days. The painted-wood home can be configured into a kitchen, bedroom, bathroom, and living space, plus a shaded deck—all for just $29,000.
1 Day: The Active House B10 is a prefab, glass-fronted box of a home built that can be built in a single day. The fully recyclable 970-square-foot building generates 200 percent of its energy needs thanks to a photovoltaic grid on the roof.