NextGen homes look like any other, but each includes a separate “near” apartment, featuring a bedroom, bathroom, living area and kitchenette. It is “near” rather than “full” because it lacks a stove, which would technically turn the separate space into a new residence in most zoning codes. The apartment even has its own entrance, according to CBS News.

The idea was born out of a trend that took hold during the recession, where families doubled up to save on housing costs. Kids who had run out of money moved back into childhood homes, heads of families who had lost their homes to foreclosure moved in with siblings, or mom and dad settled in with their children’s families.