A relatively large percentage of the space in a high rise is wasted: https://westnorth.com/2015/04/27/high-rises-land-efficient-but-not-floorspace-efficient/ ht

A relatively large percentage of the space in a high rise is wasted: https://westnorth.com/2015/04/27/high-rises-land-efficient-but-not-floorspace-efficient/ https://westnorth.com/2015/04/27/high-rises-land-efficient-b... They also tend to be more expensive and use considerably more resources to build and maintain. Obviously any form of multi-tenant space is more efficient than single-family housing, but there's a sweet spot somewhere between single-family and high rise that's the most space efficient.