Should We Expand Manhattan?

How about before creating more land to create more housing, how about regulate the housing market there to make sure the housing that's already there be affordable and accessible to those that need it? Then once that's full consider making more land. Cus if they just make more land, all the private development there will just be overly expensive luxury apartments, which is what's happening throughout the country anyway, increasing cost of housing, making it harder and therefore being back at square one. The main barrier to access to housing isn't supply, but the elevated cost.