I got approval from the BTV Association before building my 8X10 shed. I just submitted a lot plan with the house and shed locations. No problems, no fees. I did not contact the county.
Scott
BTV wants a permit for “any” shed. But they don’t (and can’t) enforce that. If you build it within county building code specs, you shouldn’t have any problems. If your lot is level or you level a section for a shed, Tuff Shed or other shed builders can usually build one in a day.
I’d suggest you get in touch with a local contractor. If you don’t want to go through the building permit process (and fees) I suspect that the limit will be Calaveras County building code, not Big Trees Village.