For several decades starting in about 1950, American families got smaller, while new houses built in the United States got larger. We have started to correct those contradictory trends, with the mean family size stabilizing at about 3.13 people per family since 2012 and the mean new house size decreasing from 2,687 square feet in 2015 to 2,364 square feet in 2024. As a result, the mean new house size per person has decreased from 856 in 2015 to 755…
