Jump on the tree branch then over the gate.
:D No I got that one. When you get to the house you can jump over the entrance up onto the overhang and then keep jumping up on what I guess are shingles. When you get to the top you can see a door off to the left floating in mid air. THAT'S the one I can't get to.
Wow, I didn't know about that secret at all. Now I'll have to check it out myself.