The breeding spaces are also outfitted with buildings for horsework. As seen here, the indoor schools have been created to provide a place dedicated to the concentration, to the calm necessary for horses and also to protect from the elements. Like the large indoor school at the Le Pin national stud farm, they are closed, covered and are perfectly suited for the working and relaxation of stallions. This indoor school was built by the architect Pierre Le Mousseux following plans drawn up by Robert de Cotte.