alt Hacker NewsThe economics of 3BR family units are typically hard for developers to make money on. Bobby Fijan (https://x.com/bobbyfijan) is an example of a developer who is a vocal advocate of family-centric apartments and townhomes. His projects look amazing. He also talks about the challenges creating family housing.
Single stair reform is something that helps in terms of making more family sized units (aka 'homes').
I saw the author of this book give a talk earlier this year and found his point of view pretty convincing: https://islandpress.org/books/building-people#desc