Image Credit: Screenshot via CNN

The American house has grown up in the last four decades. Or, more aptly, out. American homes are bigger than ever before, as a delightful timelapse from CNN and animator Bard Edlund shows.

Since 1973, Americans have added fireplaces and air conditioning to their houses, replaced wood with vinyl siding, and ditched electric heating for gas. Oh, yeah, and traded their relatively modest three-bedroom homes for McMansions.

The typical new house in the U.S. is 56 percent larger than it was 40 years ago. The median American home was just 1525 square feet in 1973, compared to 2384 square feet in 2013. And that change has been pricey: The median cost of a new home was around $64,600 in 1980. In 2013, the median price tag on a new house was more like $269,000.

Image Credit: Screenshot via CNN

Looks like the tiny house movement has a long way to go.

Check out the animation here.

[h/t: CNN]