What Is an Official Residence?A public-use category that can include a palace, mansion, townhouse, cottage or fortress residence.The White House: Residence, Workplace and State SettingWhy the United States’ best-known official home is neither a castle nor a traditional royal palace.Canada’s Prime Ministerial Residences24 Sussex Drive, Rideau Cottage and Harrington Lake show how designation and actual occupancy can diverge.Rideau Hall and the Citadelle of QuébecCanada’s governor general uses a villa-estate in Ottawa and a residence within an active citadel in Québec.Palaces in Republics and Working Royal ResidencesWhy palace buildings can outlive monarchies and why royal residences may also be offices.