it's interesting how we (as an urban society) go back and forth on that last issue. back in the early '80s, i lived in a completely dilapidated tenement that was the last occupied structure on east 6th between C and D on the Lower East Side. the city declared eminent domain and razed the building to put up a block of low rise projects -- having deemed the high rises to be failures for a variety of reasons. the same was done in wide swaths of the south bronx.
i know that public housing and market rate housing are two different things, but your suggestion just brought that to mind.
I understand. But public housing *is* a different thing, one which has a range of serious problems specifically with elevators (maintenance, misuse, etc.) and staircases (disabled residents unable to use them, predators harvesting victims through them, etc.) And in the 80s, there *wasn't* the demand for NYC housing we have now, so there wasn't any need to additionally densify. I remember when I was a kid people were talking about *shrinking* the city's housing stock.