Here is one of the conceptual drawings of the side elevation. There is definitely pitch to the roof. I'm not locked in to the 2' 6" henhouse height. That floor can go up or down based on the slope of the ground.
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I have a raised coop with almost the same height space beneath. Based on my experience if I was going to do it over, I would change one thing. The chickens love the sheltered space I would not take it away, however, I would make it more easily accessible for humans. Consider making one of the fence panels below the coop a removable panel. I have found on occasion that I need to get under there, the wind or a chicken will blow/kick the feeder over out of reach or I need to catch a chicken for some reason so of course she will hide under the coop. Learn from my mistake and my crawling around on my hands and knees in chicken poop with a long broom handle trying to reach things
