I have a similar space under our deck and I was considering using for our ducks (4 females) and their run. In the mountains, we have a lot of predators and super storms, and this seems like a safe solution. Its already latticed in, just smaller wire at the base to keep the predators out would be needed. We bought a remade duck house to go under there already. For smell, people have recommended the horse barn PDZ refresher.
im wondering how this turned out or how anyone’s similar project turned out.