I have 3 coops that are 10x10 with a 10x20 run attached to each.
Coop 1 I have my 8 laying hens. They are coming 2 yr olds and consist of 2 Buff Orps, 3 Black Aussies and 3 EEs. I did have an English Orp cockerel in with them, but he went to freezer camp this past weekend.
Coop 2 I have my 11 Cream Legbars. They are 3 to 3 1/2 months old.I have 2 cockerels and will be moving them into coop 1 in the next couple of months.
Coop 3 I have 3 Splash English Orps. I sold 2 Blues and put my other Splash cockerel in freezer camp. I have these 3 up for sale, so when this pen opens, I will be able to split up my Legbar pen.
I really try to keep 10 or less chickens per coop. They could hold more, but I find this number works well for me. They all like to hang out in the coop, so I want plenty of room for them.
I do not free range. I still have one pasture fence to put up and I have 2 dogs that were not raised around chickens. I know one or both would get a chicken if it was out running around, so I keep them all up.