@Daojoan I want a pied a terre tax but this post overstates things a lot. There is no significant supply hoarding. And there is no reason to think that owner occupied housing is inherently better (edit: especially if people have to spend a huge part of their income to buy it). Many people don't have the capital to maintain a building.

The basic issue is a lack of supply, especially supply of very inexpensive, durable homes for low income people. We should be building them and giving them out.