Buying land in Hawaii and putting small short term rentals on it

[Micah Flamm]

Hi! I am new to the real estate game and the hawaii market but I want to buy a parcel of land on the big Island of hawaii and put trendy tiny houses and structures on it to rent out via airbnb, etc. 

From my calculations I could buy something quite cheaply (15-30k) and build it up to have multiple rental units to bring in income. 

What kind of obstacles would I face in trying to do this? Would I need permitting to put these structures on the land? Would there be other problems with land other than tree clearing, etc. Is it very expensive to connect to water/ sewage/ etc? 

I want to know if I am underestimating the costs of buying land in Hawaii and putting prefab housing/ if anyone has done this in hawaii or otherwise?

Thank you!!