Anxvariety
The properties are in Borrego,Shelter Valley?
I think the contamination issues with the tire and mud style construction are mitigated with an interior vapor barrier on all exterior walls. Wire lathe is attached to the walls and they are plastered.
Speeding pullet , My wife and I lived in a second hand travel trailer with a temporary occupancy permit while we built or admittedly conventional house. We(I) keep talking about it as the cure to affordable housing and enviormental issues. I had the idea of digging a huge hole on a knoll pushing the trailer in it, Making accomodation for the earths weight against the weak structure, access, ventilation and natural lighting in various ways. Then it would be covered with visqeen plastic so that water would plane off the knoll. About a foot of soil covers the plastic and the land is revegetated. I donated the trailer to a family in Tecate so it wasn’t a complete waste.With a few exceptions to the rule the county of San Diego by the way does not allow for living in these trailers anywhere under it’s jurisdiction . The ones you see are supposed to be parked only. There is another rule that allows visitors to live a total of 30 days a year in them. Could you all imagine what would happen to the economy if we were all allowed to do these kinds of alternative things.