It was built starting from 1877 and completed in 1881, on a surface of 8.2 ha (20 acres) along Via della Pineta Sacchetti.
Since 1925, having ceased its strategic function, it has hosted the military Italian intelligence agencies, such as the Servizio Informazioni Militare (SIM).
[1] On 29 May 1931, the fort was the scene of the shooting of the anarchist Michele Schirru, convicted of planning an attempt on Mussolini.
From 1977 to 2007 it housed the operation center of the military intelligence, the Servizio per le Informazioni e la Sicurezza Militare (SISMI).
It currently houses the headquarters of the Agenzia Informazioni e Sicurezza Esterna (AISE) and of the Raggruppamento Unità Difesa (RUD).