Initially, only twelve cabins were built for the children of the Olympians. Those of other minor gods or unclaimed children of the twelve would reside with the children of Hermes in Cabin Eleven. After the Second Olympian War, Percy Jackson requested that Hades and the minor gods be given their own cabins as well. Now there are twenty cabins at Camp Half-Blood as of The Blood of Olympus, but Jason Grace is planning to get cabins for all minor gods and goddesses.