Converted this playset into a 2-level chicken coop. 1st floor is for food, water, and an "easy access" egg laying area (shown as the open door under the flag). Second floor is for the chicken roosting area. Created a small access door (that can be closed if needed) between the fenced in outdoor area and 1st floor. The 2-level area can be accessed by the "French doors" on the back side and the outside area is accessed through a 5' door. We buried wire about 1/2 foot below the ground and then added 1-2 pound stones on top of that. Planted rose bushes around the outdoor coop area and marigolds near the egg laying hatch. Did this entire project (minus wire and roofing material) with mostly reused lumber.
We didn't seal it so to intentionally let air and breezes come through. We add "wind block" materials to the upper layer (where the hens roost) during the winter months.