Slightly off-topic, but to me these kinds of articles always offer an amazing insight into how the average (okay, if they're literally average or not is debatable) American thinks cities and urban planning.

If you read a bit through the comment box, about half of the comments are from people scandalized and terrified that Portland will immediately turn into a huge dumpster rife with crime because of the new legislation. The gist of it is that having 3 or 4 apartments per lot (in a few select lots, mind you) will turn your city into a crack den.

That is a really quaint mindset. I can only imagine what those people commenting on the news would think about Paris, London or basically any major city outside the US where having dozens of apartments per lot is the norm and has been for decades or centuries.