[3] The Mansion House was also used as the venue of important events, such as the second session of the United Nations Economic Commission for Asia and the Far East (ECAFE) in 1947, the second session of the Food and Agriculture Organization in 1948, and the first meeting of the Southeast Asian Union (SEAU), more commonly known as the Baguio Conference of 1950, which was conceived and convened by President Elpidio Quirino.

On January 21, 1994, Conrado Balweg, the leader of the Cordillera People's Liberation Army, and his followers, who had been using The Mansion’s guesthouse as their headquarters since 1986, were removed from it by policemen without violence.

[5] The Mansion House consists of an elegant Spanish Colonial Revival building and a detached guesthouse.

The public may visit the inside of The Mansion House, which contains a museum featuring presidential memorabilia.

Across the road from The Mansion House is Wright Park, a quiet promenade with a long reflecting pool lined with agoho (Australian pine) trees.