National Association of Home Builders research analyst Rose Quint captures a couple of key areas in home preference that show off similarities and differences among generational cohorts--Millennials, GenX, Baby Boom, and a catch-all "seniors" segment.
Quint notes that when asked how much finished space they would like to have, home buyers in general reported wanting a median of 2,020 square feet, about 9% more space than they currently have (1,859 sq. ft.). She says, however, that age is a factor in just how much space people say they want. She writes:
Buyers in the Millennial and Gen X generations both want homes over 2,300 square feet, whereas Boomers and Seniors would like homes under 1,900 square feet.