Does anybody have any experience Investing  "impermanent structures"? My close friend lives in a Luxury Yurt in the Catskills in upstate New York. He has all the comforts of regular home, except for a septic system. Instead, has a composting toilet ( I know it sounds weird but it really doesn't leave any smell in the bathroom at all, probably less than a normal toilet). Other than that he has his own running water and electric. The benefit is that he doesn't pay town or school tax only property taxes on the land itself. Yurts like these are beautiful and cheap to throw up. I was thinking that if you attracted the right niche of people they could be great rentals. 

There are several requirements for it to be considered impermanent, the main one being that it does not have a foundation. 

The biggest issue I think would be making sure that it was all legally above ground some of the regulations may be vague as most communities have little experience with this sort of thing.