Headquarters of the People's Party (Spain)

Its first occupier may have been Manuel Antonio de Acuña y Dewitte [es], the tenth marquess, who was a member of the Conservative Party.

Though the documentation is scarce, the palace may have passed to Isaac Peral—inventor of the submarine—who sold it to Luis de Marichalar y Monreal [es], another Conservative politician.

The following February, the party moved from Calle Silva to this site; it was initially rented from the insurance company Mapfre and not bought outright until March 2006.

[7] In December 2014, Daniel Pérez Berlanga deliberately crashed a car filled with butane canisters into the entrance of the building.

[8] PP president Pablo Casado unexpectedly announced in February 2021 a desire for the party to sell the building and move elsewhere, as a break with the past over scandals such as the Bárcenas affair.