I built an 8x8 coop on the ground. I set it up so the door dose not have a step I can go in with a rake and pull everything out without bending over or having to shovel anything out. I have a cement foundation so predators can not get under and the attached run has fencing buried at least 10'' deep all the way around the door to the run have ment sloped on both sides so I can rake over it but nothing can dig under it. I don't think there is any thing wrong with having a raised one I think they do that to protect from snakes or something. I have never had that kind of trouble. I built mine with my back in mind, make it as easy as posible to clean. And make sure nothing else gets in and that's all you need