Side Mounted Birdhouse Plans With Side Entrance Hole Free Birdhouse Plans - 1 side entrance hole accommodates chickadees, wrens, nuthatch, & Downy woodpeckers. This site includes plans for others, too.
Here's the dining booth/fold down bed/storage area. You can see that I tried to tie it together. The bench frame screws three of the four walls together. I was happy with the way the corner joints turned out (Cool Beds Frames)