This Builder of 3D Prefab Homes Says It Can Tackle the Housing Crisis May 13, 2021 The U.S. and California, in particular, are in the midst of a housing crisis. According to Freddie Mac, the U.S. housing market is short 3.8 million homes. A lack of affordable housing primarily fuels the housing shortage. As construction costs increase, homeownership is an elusive goal to many. Could more sustainable building practices, such as the scaling up of 3D prefab homes, help? Although there have been considerable advances in green building practices, often, these innovations are not adopted by develo...