| None of that is possible without massive changes to the structure of the building. Those spaces are currently used for elevators and utilities. Additionally, unless everyone is going to be sharing communal showers/toilets/kitchens, none of the existing utilities are run to where they would be needed for multiple residential units. Having your own bathroom and kitchen is essentially a requirement for non-marginal US housing. Keep in mind, commercial office space construction is already more expensive (by almost an order of magnitude per sq ft) than residential, and high rise construction is more expensive than normal commercial construction. So unless there are massive defaults and write downs/some kind of ‘great depression’ type situation, it would be doing a lot of expensive work to convert an already more expensive building to be competing in a space where everyone else did things cheaper from the beginning. Not a great formula for economic viability. Not impossible, but the level of economic dislocation necessary to have it make sense is mind boggling. |
Additional leftover interior space can be used for amenities like a gym or lounge. It's not the world's most efficient use of space, but it's an efficient use of the existing space that doesn't require tearing down a building.