The Pittock Mansion is a French Renaissance-style château in the West Hills of Portland, Oregon, United States. It was built in 1914 as a private home for London-born Oregonian publisher Henry Pittock and his wife, Georgiana Burton Pittock. It is a 46-room estate built of Tenino sandstone situated on 46 acres that is now owned by the city's Bureau of Parks …The Pittock Mansion is a French Renaissance-style château in the West Hills of Portland, Oregon, United States. It was built in 1914 as a private home for London-born Oregonian publisher Henry Pittock and his wife, Georgiana Burton Pittock. It is a 46-room estate built of Tenino sandstone situated on 46 acres that is now owned by the city's Bureau of Parks and Recreation and open for touring.