Hi Seanski,
We just happen to be looking for someone like you to park a tiny house on our
land. I started this
thread a few days ago
Person with tent or tiny house wanted, (and then started another on the same subject from a different angle -- which I can point you to as well. That one kind of went south fast for some reason,
but it has some further information in it about what we're looking for so you may want to read it too. It is titled "What's wrong with Missouri?")
I see you are looking for something in California, but would you possibly consider Missouri? We have lots of land and you could have as big a garden here as you like. (We're in zone 6b-7a so do get some winter, but it is mild and we still have a comparatively long growing season.)
Anyway, contact me if you have any interest and we can talk. I can give as much detail as you want about the place and our plans, I just don't like putting everything out here for public consumption and would prefer to do it through private messages.