We have a home that was built in stages. Part of the house is built on a
raised wooden skirt with wooden floors and nothing below except earth. The
newer part of the house was built on a poured concrete slab. We are wanting
the entire house to be on a concrete foundation.

From what I have been told, the older part of the house basically needs to
be gutted (all interior walls and existing flooring removed) and then the
new foundation gets poured. Then the walls go back up.

We've gotten quotes ranging up to $40k to do this.

My attitude is to nuke the site from orbit and start over again by building
a new house in place of the old one.

Has anyone ever gone through anything like this before?

Thanks.