Housing Shortage – There is a global housing shortage and shortage of affordable housing. US shortage alone has been estimated to be 5.2 million housing units. 
Archaic Building Methods - The construction industry is one of the oldest and largest in the world. Yet, we are using the same basic building techniques we have for centuries, resulting in the vast majority of projects delivered over budget and behind schedule. Contractors completed only a quarter of projects in the U.S. within 10% of initially promised deadlines. There are shortages of skilled employees in every construction trade. 
Environmental Impact - The construction sector is the largest global consumer of raw materials globally, responsible for approximately 11% of the world's total carbon emissions.