> 1. There is a difference between luxury apartments and new apartments.
In the USA, not really. Today's new luxury apartment is tomorrow's old but affordable housing. Given the expense in building something, there isn't much cost difference to developers in building low-income units or high-income units, and if they go with the latter they will lose their shirts (Not to mention the low-income tenants of those houses would have to pay land use taxes similar to their richer neighbors).
> For example empty lots or parking lots are low value and would be turned into housing,
There really aren't many of those left in the cities people want to live in. Undergound parking and multi-level parking garages are already a thing in dense locations where property values alone mean turning something into a parking lot is bad use (unless you are saving up the parking lots to create something rand like Vulcan's South Lake Union project in Seattle).
I'm still all for it, but we would probably have to sink a lot more money into public housing to prevent a bloody revolution from occurring.
In the USA, not really. Today's new luxury apartment is tomorrow's old but affordable housing. Given the expense in building something, there isn't much cost difference to developers in building low-income units or high-income units, and if they go with the latter they will lose their shirts (Not to mention the low-income tenants of those houses would have to pay land use taxes similar to their richer neighbors).
> For example empty lots or parking lots are low value and would be turned into housing,
There really aren't many of those left in the cities people want to live in. Undergound parking and multi-level parking garages are already a thing in dense locations where property values alone mean turning something into a parking lot is bad use (unless you are saving up the parking lots to create something rand like Vulcan's South Lake Union project in Seattle).
I'm still all for it, but we would probably have to sink a lot more money into public housing to prevent a bloody revolution from occurring.