Welcome to BYC.
Rules of Thumb:
If it's measured in inches instead of feet, it's too small.
If it has more nesting boxes than the number of chickens it can appropriately hold the designer knows nothing about chickens' actual needs and it probably has other flaws.
If it looks like a dollhouse it's only suited for toy chickens.
The one good point about this little coop is that it is much better ventilated than most prefabs with enough ventilation in the monitor roof for at least 1.5 chickens -- except that the rain would come in because there's no roof overhang.
The Usual Guidelines (which are guidelines, not hard and fast rules), are that each adult, standard-sized hen needs:
4 square feet in the coop,
10 square feet in the run,
1 linear foot of roost,
And 1 square foot of permanent, 24/7/365 ventilation, preferably located over the birds' heads when they're sitting on the roost.
There are only 14 square feet in this entire setup (nest boxes don't count) -- this is smaller than the dog-crate coop I just put together to hold a few chicks for a month or so:
https://www.backyardchickens.com/th...s-for-the-new-arrivals.1466672/#post-24433620
How many chickens do you have/want and where, in general, are you located? (Climate matters). We'll be happy to help you come up with a good option for your happiness and your chickens' long-term health.
