We started with the basic chicken shed coop plans and modified it some. We wanted the peak to be in the front for ease of access and to allow leaves from tree overhead and rain and snow to fall to the back away from the entrance. The windows raise from the inside using 1/8" wire secured on the inside with a rope cleat hook.
We added Dutch doors. We added latches for the pop door to keep it iopen or closed as needed. Dutch doors also have decorative latches and eyehook latches to secure them when they are fully open. I rested the shed on 12 in. x 8 in. x 12 in. concrete patio pier blocks to allow drainage. we extended the roof about 6 " to allow for extra protection and avoid dripping whe it rains.
On the inside I have a roost and a poop deck. Hanging from the poopdeck I have their feed to keep it off the floor and keep shavings, etc. from getting into the food. The poop deck and the floor are covered with comercial grade tile to facilitate easier cleaning.