The Mansion House was built-in 1908 to serve as the state summer residence of U.S. Governors-General at the insistence of Governor-General William Cameron Forbes. The name comes from the summertime cottage in New England of Governor Forbes whose administration the initial Mansion House was built under. Architect William E. Parsons, predicated on preliminary programs by architect Daniel H. Burnham, the planner of the populous city of Baguio, designed the mountain retreat following tenets of the populous city Beautiful Movement. In 1910, the conference of the next Philippine Legislature happened at the Mansion House for three weeks.
With the inauguration of the Philippine Commonwealth, the Mansion along with Malacañan Palace was turned to the Philippine president. The Great Commissioner to the Philippines, the successor to the Governor-General as the best American established in the Philippines and representative of america Government, constructed The American Residence then, completed in 1940.
The homely house was badly damaged through the Second World War and was rebuilt in 1947. Since that time, it has offered as the vacation home and working workplace for every President of the Philippines during their visits to Baguio.
The Mansion Home was used as the venue of important events also, like the second session of the US Economic Commission for Asia and china and taiwan (ECAFE) in 1947, the next session of the Agriculture and Food Organization in 1948, and the first meeting of the Southeast Asian Union (SEAU), more referred to as the Baguio Meeting of 1950 commonly, that was convened and conceived by President Elpidio Quirino. More recently, the Mansion Home has been the website of a true number of international conferences.