Thames House is a prominent office building located in Millbank, London, situated on the north bank of the River Thames near Lambeth Bridge. The structure is historically significant for its role in housing key government functions and intelligence operations within the capital.
Originally constructed for the Imperial Chemical Industries, the building was repurposed to serve as the headquarters for the Security Service in December 1994. In addition to its intelligence role, it also functioned as the London base for the Northern Ireland Office until 2013, marking its importance as a center for administrative and security governance.