Building housing is starting to get really high. I don't know if its because the margin is so high that workers can be paid that much (I'd be skeptical), but the average price to build in the expensive cities is pretty high. Not as high as what it sells for, but definitely higher than a lot of people can afford.

Add that right now there's a timber shortage (insurance costs are spiking recently for that reason), and it's probably not helping.

The land value is the most actionable problem, but it doesn't solve everything.