WOW...that is neat! I love the window, nesting boxes, ventilation, and access door. It looks easy enough for my husband to make...I will wait to see how the flock behaves to see if the extra covered room is needed. Thank you!
My dad is retired and made it his project, doing tons of research to get the size of things just right, but it wasn't too difficult to build. Just 4 walls, slanted roof (it's plywood with regular tar roof shingles attached,) nest box, door for them on the other side with a self-standing ramp up to it, and the front access door big enough to easily clean. Since they aren't really in the coop and don't mess in it I just put down doggy pee pads and change them out every other week or so, more if it's muddy. The vents are regular house vents that can be open/closed, and the door is screen but has a separate removable wood/plexi covering for winter. If your hubby wants to try to build something similar and needs more info, let me know.