I've considered this idea before, but I can understand why making it work would be pretty difficult: robots that build houses out of concrete.
The first prototype â€” a watertight shell of a two-storey house built in 24 hours without a single builder on site â€” will be erected in California before April.
A rival design, being pioneered in the East Midlands, with Â£1.2m of government funding, will include sunken baths, fireplaces and cornices. There are even plans for robots to supplant painters and decorators by spraying colourful frescoes at an affordable price.
By building almost an entire house from just two materials â€” concrete and gypsum â€” the robots will eliminate the need for dozens of traditional components, including floorboards, wooden window frames and possibly even wallpaper. It may eventually be possible to use specially treated gypsum instead of glass window panes.
Engineers on both projects say the robots will not only cut costs and avoid human delays but liberate the normal family homes from the conventional designs of pitched roofs, right-angled walls and rectangular windows.
â€œThe architectural options will explode,â€ predicted Dr Behrokh Khoshnevis at the University of Southern California in Los Angeles, who will soon unleash his $1.5m (Â£940,000) robot. â€œWe will be able to build curves and domes as easily as straight walls. ...
The researchers in Los Angeles claim their robot will be able to build the shell of a house in 24 hours. â€œCompared to a conventional house, the speed of construction will be increased 200-fold and the building costs will be reduced to a fifth of what they are today,â€ said Khoshnevis.
In addition to being faster and cheaper, the houses will probably also be far more durable than wood-frame structures, except against earthquakes.