Start clearing out the basement and looking out for an extra microwave. Nearly one third of all homeowners expect adult children and/or aging parents to eventually move in with them. Homebuilder PulteGroup’s latest survey of 1,000 homeowners indicates that not only do a third of homeowners expect to be living with extended family in the near future, but one in seven already do. And that trend is only going to continue, with multigenerational households at their highest levels since the 1950s.