Okay. Here is my answer. I'm glad to see that you are enthusiastic about raising more hens, but also trying to take their welfare seriously enough to ask about limitations. I'm sure some will disagree and will post accordingly, but at least this is a starting point. Assumptions:
You are...
Dimensions are the most important (but not only) items for figuring out capacity. Please list:
roost length in coop
coop space in square ft
run space in square ft
approximate yard dimensions
number and size of nesting boxes
are you figuring on having only hens?
do you expect to raise only...