The United States is not building enough homes to account for the number of people setting up their own households. As a result, there is a sizable shortage of new homes after more than a decade of under-building relative to population growth, according to a new analysis from Realtor.com released Wednesday. The gap between single-family home constructions and household formations grew to 6.5 million homes between 2012 and 2022. However, this figure overstates the housing shortage, since new multi-family homes offer options both to buyers and renters. If multi-family construction is included — which ...