American homes are a lot bigger than they used to be. In 1973, when the Census Bureau started tracking home sizes, the median size of a newly built house was just over 1,500 square feet; that figure reached nearly 2,500 square feet in 2015.
This rise, combined with a drop in the average number of people per household, has translated to a whole lot more room for homeowners and their families: By one estimate, each newly built house had an average of 507 square feet per resident in 1973, and nearly twice that—971 square feet—four decades later.
Click here for more information: https://www.theatlantic.com/family/archive/2019/06/big-houses-american-happy/591433/