The Otokage's Mansion is in fact in the same spherical building that sits atop the Crystal Spire. It's what makes up most of it in fact, as the office is only where business is conducted. The rest of his home has all one would fine, including a dining room for dinner parties, a large bathroom for obvious reasons, and a extravagant bedroom. There is also a aviary for his pet bird of paradise, and other songbirds.