Built in 1922, the school is notable for its main school building that has managed to retain its pre-war architecture, making its building the oldest surviving campus in Manila.

[1] The school was built on the land that was donated by the heirs of Benito Legarda, an eminent legislator and cabinet member of the First Philippine Republic who later became the first Resident Commissioner of the Philippines during the American colonial period.

It became a prominent landmark in the area with its unique Victorian style of architecture which evokes a sense of grandeur.

[2] The school's first principal was Andrea Vitan Arce, a renowned educator and writer.

[3] Additional school buildings were built in the school grounds to accommodate a growing student population but the original structure has been preserved as a landmark heritage structured cited by the Department of Education and the National Historical Commission of the Philippines.