If it looks like a doll house, it's only suitable for toy chickens.
Take the money you would have spent on that coop and build one. Check out "hoop coops" for less expensive ideas. If you can find a shed to repurpose, that might work, but plan to cut a LOT of openings in it for ventilation.
The rule of thumb for ventilation is 1 square foot open 24/7/365 per chicken. ("Open" does mean covered with hardware cloth to keep out predators.) In your climate, you will need more than that. You will also want to be sure to provide your chickens with plenty of shade.