The museum's architecture is a classic "Bahay na Bato", made of masonry at the ground floor and wood at the upper level. In 1934, during the reign of Mayor Nicanor Garcia, the structure was rebuilt using concrete materials. In 1958, while it was still used as a town hall, then Mayor Maximo Estrella had it renovated. In 1961, when the offices of the local government of Makati moved its office a few miles from this building, the old town hall was used as the Municipal Library.