Elon Musk, the world’s richest man, is apparently going big at home, too—he’s reportedly building a massive 14,400-square-foot mansion designed to bring his large family closer together.

Musk wants a space where his 11 kids, along with two of their three mothers, can live nearby, letting the younger siblings grow up together and giving Musk more time with his family.

A few days ago, news outlets from other countries said that investor and businessman Elon Musk wants all of his children and their mothers to live together in some way.

The man who owns Tesla and SpaceX has 11 kids from three different women. The New York Times said last week that Musk wants to move his whole family into three mansions in Austin, Texas, that are next to each other.