[ethanbond]

Oh... it sounds like you're saying the proposal is to actually convert all existing developed land to 5+1. I don't think that's anyone's proposal?

Upzoning does not mean you automatically get a building at maximum allowed density, it means you increase what is allowed and let the market decide what makes sense where. It would play out exactly as you describe.

[PebblesRox]

I think the point is that not all the suburban sprawl will get converted to 5+1 so some of it's going to decay/devolve.

[ethanbond]

Ah, I see. Yeah. Undoing decades of malinvestment at the lowest levels of infrastructure is going to have some sharp edges.