The Faraday Building was the GPO's first telephone exchange in London.
It started life as 'Central' telephone exchange at the Post Office Savings Bank building in Queen Victoria Street, opening for business on 1 March 1902 with just 200 subscribers. The Faraday Building is erected on the former site of Doctors' Commons, which had been the location of the Admiralty Court, Probate Court, and the principal ecclesiastical court in England.
The Post Office’s first London telephone exchange served nearly two-and-a-half square miles of the capital – notable subscribers included the Treasury, the War Office and Fleet Street.
