Hell, if the area is really so cheap, you could even use every other floor for plant and run the plumbing through those levels to the risers. Then anything not

Hell, if the area is really so cheap, you could even use every other floor for plant and run the plumbing through those levels to the risers. Then anything not used by the plumbing can be storage or other non-living space for the unit above. You could have a workshop in a skyscraper!