This link will take you to a picture of my first chicken coop. It was a dog house before but when we had to put our dogs down it became a chicken coop. It worked really good but we are expanding our flock to 15 chickens. Int eh winter we had planks to put over the chicken wire front to reduce air flow. Loved it. I think I am just going to add onto it instead of tear it down.
https://www.backyardchickens.com/forum/uploads/102380_chickens_007.jpg
https://www.backyardchickens.com/forum/uploads/102380_chickens_007.jpg