English: New Government Offices, Horse Guards Road. By J.M. Brydon, built in 1899-1915, the process finished by Henry Tanner after Brydon's death in 1901. This side of the building wasn't completed until 1915. Grade II* listed. The building is now occupied by the Treasury, Revenue and Customs and probably one or two other government departments. This Street junction was used as a location for the episode "The Second Stain" (1986) of the Return of Sherlock Holmes series starring Jeremy Brett.