The Growth Ponzi scheme may be useful in thinking through housing issues:
https://www.strongtowns.org/the-growth-ponzi-scheme
Briefly, most cities are unsustainable in their current configurations due to an unaffordable maintenance cost structure. But they can fake it by adding people/businesses and thereby growing the tax base.
This scheme leads to a growth at any cost attitude resulting in market distortions. Throw in some help from a central bank hellbent on levitating the US stock market by shoveling money into the credit system, and you end up in a bad place.
Portland has decided to stop sprawl by investing in density-increasing infrastructure such as rail lines.
Ironically, the result has been to send property prices through the roof, leaving an overhang of unused land in its wake. Owners of these properties look around them to see high density developments everywhere. What's the value of their own land? It will of course be turned into and equally-high value development, so the price is set accordingly.
Nothing is left in the middle.
https://www.strongtowns.org/journal/2016/10/23/portland-hous...
What's the solution? The author of Strong Towns puts it this way:
> What if along all these rail corridors and at all of these rail stops, instead of being able to build an eight-story condo unit, all a developer was allowed to build was the next increment of intensity? For most of that area, that would mean single family homes. In that case, what would happen to land prices? They would drop. They would crater, in fact. This would free up an incredible amount of land for cheap, affordable development while also taking a substantial amount of pressure off of the existing single-family neighborhoods.
> I'm not advocating for single family homes. I'm advocating for incremental development. Portland (and Austin and San Marcos and...) are trying to skip increments. They are trying to have a toned body without proper diet and exercise. ...
https://www.strongtowns.org/journal/2016/10/30/spiking-a-ris...