The first house, which has a built-up area of 600 square feet, has a bedroom, a hall and a kitchen. CHENNAI: India’s first 3D printed house built by IIT-Madras startup Tvasta was inaugurated on the campus Tuesday The house, which has a built-up area of 600 square feet, has a bedroom, a hall and a kitchen. The entire house was designed using software and printed using concrete 3D printing technology. Using this technology, a new house can be built in five days against four or five months in conventional mode. Further, the cost of the house is reduced by around 30% and life of the building can exceed 50 years.