This is more of a problem with time frames. Wooden houses last 100-200 years if very well built. I've seen teardowns after 50, sometimes less. What's the environmental cost of building 4 wood buildings to last as long as 1 concrete building?
Concrete construction lasts centuries. And if torn down, can be crushed and after separated from rebar, re-used as aggregate in another project.
Concrete construction lasts centuries. And if torn down, can be crushed and after separated from rebar, re-used as aggregate in another project.