Lego-Like 3D-Printed Homes Setto Relieve California Housing Crisis
Charlie Mitchell 查理·米切尔
On a five-acre plot in Rancho Mirage， an unremarkable desert city in California known for its resorts and golf courses， a vision of the future of housing is about to be created.
That is because 480 miles away， in a warehouse in Oakland， humming 3D printers the size of garages are building houses for the world's first fully 3D-printed residential neighbourhood.
It is the result of a partnership between two California companies， real estate group Palari and Mighty Buildings， a building technology firm.
Rancho Mirage is not the first place to have 3D-printed buildings. In 2019， a Mexican charity made 3D-printed homes for low-income families， while China has for years printed multi-floor office blocks and flats.
However， a pristine neighbourhood of 15 eco-friendly printed homes that are large and aesthetically pleasing is groundbreaking，the project's founders say.
Construction is expected to take 18 months， raising hopes that 3D-printing could relieve California's housing crisis. Rapid population growth is set to create a shortfall of 3.5 million homes within four years.
3D printers use molten material to create layers from the ground up. The California homes use synthetic stone， which hardens in sunlight and is stronger and lighter than concrete. The roof and insulation can also be printed， allowing the houses to be built as if made of Lego bricks.
The 135 sq m Rancho Mirage homes，120 miles from Los Angeles， will boast mid-century modern architecture — simple lines with minimal decoration. Each will have three bedrooms， two bathrooms and a swimming pool. Prices will range from $595，000 to $950，000 ， with the most expensive models having hot tubs， fire pits and outdoor showers.