I am fascinated by this article about two families who have chosen to share a home, and also include various short term occupants as well. Obviously none of them are short on cash, but I could imagine it working at a more normal level too. If you can get a four-person mortgage you could get a really great place, with more living space/garden/etc, as well as plenty of bedrooms.
Part of me thinks it sounds brilliant and part of me is thinking of all the ways it could go wrong.
Would you do it? Why or why not?