We have four seperate cattery units. We only allow cats from the same family unit to share a pen. As you can see from the pictures, there is plenty of room for up to four cats from the same family to share a pen. In the pictures Ossau and Annie, who are adult cats, give a good idea of the space available.
The middle picture is the view from the window. In the summer, the window can be opened, and the cats can access outside space.