It also bought two adjacent pre-earthquake buildings to the east, on the Travessa da Portuguesa to Rua do Almada, to expand its facilities. Demolished in 1975, a new contemporary-style building designed by the architect Palma de Melo was built in their place and linked internally to the palace’s cellars.
In the 1980s, the architectural firm, ArquiTrês, under the supervision of architect João de Almeida, made several changes to the rear façade from the body of the palace to the vestibule, in addition to interior modifications. The Lisbon City Council purchased the palace in 2003.