It was designed sequentially by Andrés Luna de San Pedro and Fernando H. Ocampo.

Regina Building, originally known as Roxas Building was designed by Andres Luna de San Pedro, son of Juan Luna and was built in 1915 at the corner of Escolta Street and Calle David in Binondo, Manila.

It was a three-storey structure during the time it was built but was later expanded into a fourth floor by Fernando Ocampo when the De Leon family bought if from the Roxases.

[2] This building is surrounded on its two sides by two bodies of water, Estero de la Reina and the Pasig River.

Media related to Regina Building at Wikimedia Commons