I might be wrong, but is not the motivation for rebuilding houses to build a larger house? E.g. replace a nice 2-floor wooden house with not so nice 9 floor hou

I might be wrong, but is not the motivation for rebuilding houses to build a larger house? E.g. replace a nice 2-floor wooden house with not so nice 9 floor house from bricks and without a garden, and later demolish it and build ugly modern concrete high-rise building?