Blenheim Crescent is currently undergoing a programme of renovation works. Upon completion of these works the following units will be based there; the European Office of Aerospace Research and Development, the US Army International Technology Center Atlantic, the Office of Naval Research Global, the Naval Criminal Investigative Service, the Joint NATO National Support Element, the Defense Energy Support Center and the Fleet Industrial Supply Center.
Blenheim Crescent was transferred to the United States Air Force for administrative purposes following the disestablishment of the Commander US Naval Activities in the UK.
Blenheim Crescent is currently vacant as the building is undergoing renovation. The US plans to move around 120 personnel into Blenheim Crescent over a period of several months with the first expected to arrive in November 2007. A precise breakdown of the final figure is not yet available although under current plans it is expected that the majority of personnel, around 50, will be employed by the US Navy with around 30 for the US Army and 25 for the US Air Force. The remainder will be a mix of contractors and civilian staff.