HMS St Vincent

HMS St Vincent was a naval communications facility housed within the Admiralty Citadel, a reinforced concrete blockhouse built in 1939 behind Admiralty House in central London. The installation operated as a message processing and coordination center for Royal Navy operations across the United Kingdom.

The facility opened on April 1, 1992, taking over operations from the earlier HMS President station. It remained active until March 31, 1998, when its functions were transferred to a successor communications center.

The establishment represented the modernization of naval operations by centralizing communication systems for the Royal Navy in the heart of London.

Access to this facility was restricted to authorized Royal Navy personnel and cleared visitors. The central London location near government buildings made it strategically important for directing naval operations throughout the nation.

After closure, the St Vincent name was retained within MARCOMM COMCEN, the successor communications organization. This reflects how British military institutions maintain continuity while restructuring their operations.

Inception: April 1, 1992

GPS coordinates: 51.50580,-0.12944

Latest update: December 10, 2025 20:07