This is a very interesting thread! On the surface, it sounds like a great idea to have homes for the homeless, but several here mentioned the pros and cons (drugs, crime, etc). I also wonder who takes care of the homes when they break down, like need new roofs, heating/ac, etc? Will they be abandoned over time if they fall apart? A new home will last so many years and if the materials are cheap, I presume it will break down quickly. Also, will people own these homes over time (home ownership) or just live in them? The answers are probably in the links you sent... Finally, I don't know about California, but in Florida, a home like this won't do well during hurricane season...just saying....