The Business Design Centre is a Grade II listed building, which was originally opened as the Royal Agricultural Hall in 1862 in the district of Islington in London, England, for holding agricultural shows. It was the home of the Royal Smithfield Club's Smithfield Show from 1862 to 1938. It hosted the Royal Tournament from its inauguration in 1880 until the event became too large for the venue and moved to Olympia in the early years of the 20th century. It hosted the first Crufts dog show in 1891.
During the Second World War, the hall was commandeered by the Government, and from 1943, following the destruction of Mount Pleasant sorting office in an air raid, the Parcels Depot was moved to the hall. The hall then remained unused and empty until it was converted to its present use as the Business Design Centre in 1986.