Hi! I usually build big houses that are obvious, but I decided to experiment with some.

THE ROOF BASE
1. Build a base that looks like a real house that could be raided.
2. Build a roof
3. Separate the roof from the house with blocks
4. Add way to get in from back
(Make Sure To Make entrance to base VERY UNNOTICEABLE)

I decided to make the way into my base as climbing a closely hill and jump onto roof. I put a trapdoor on the roof 2.