Is the leach field in heavy clay soil and need frequent replacement?

Keep in mind the house was completely finished on the inside so they had to tunnel underneath.

Ever see how carpet look like underneath, not a pretty sight.

(you can deed the land underneath each unit and don't have as much complexity about utility infrastructure that crosses over each unit.Pros: potentially higher resale as individual units.  

Also, one thing to know is that our soil is really bad here and it's not uncommon to have some foundation issues.  

But underneath that bubble very little inventory for a new generation of home buyers.

., what are the lot setbacks, what is the soil, does the lot receive drainage? 

Checking with the departments one by one for each land listing that looks promising seems very inefficient.Regarding costs, i hear build costs of containers vs stick built being similar, but I had wondered if that is taking all aspects into consideration like build time, foundation and site prep requirements, etc. yes, steel cutters and welders are a special trade but the structure can arrive pre-built and potentially just sit on concrete pier foundations if the soil and zoning allows.

I'd also want to know if the home I'm buying is in an area of known problems (soil issues, etc).

Most of Minnesota soil is Shallow.