Home builders know a good market when they see it, and what they see are “multigenerational” homes — houses designed for families with an extra body or two, e.g., a grandparent.

What makes them a bit different. Could be any number of amenities: A separate entrance, two kitchens, two master bedrooms, a “mother-in-law apartment,” and so on.

Says Bloomberg:

Those features may help lure buyers at a time when new homes are selling at a record slow pace and more Americans are living with extended families, said Megan McGrath, a homebuilding-industry analyst with MKM Partners LP.

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