Multigenerational housing increases in the U.S. (Slideshow)

Multigenerational housing is as old as humanity, Forbes contributor Beth Baker contends. After a long absence in the U.S., homebuilders and research institutions find more Americans are thinking about inviting mom and dad to move in.

A 2010 Pew Research report found 20 percent of people 65 and older live in a multigenerational household, and the numbers are growing. For example, homebuilder Pulte Group surveyed adults with living parents and found that 15 percent already have an aging family member living with them, while another 32 percent expect to to eventually share a home with a parent.

Read more