Originally installed as a grand entrance to Buckingham Palace, John Nash’s arch was moved to its current location, what is now effectively a traffic island not far from Speaker’s Corner in nearby Hyde Park, in 1851.

The story goes that this took place after it was discovered that the arch was too narrow for the widest of the new-fangled coaches but there are some doubts over this, particularly as the gold state coach passed under it during Queen Elizabeth II’s coronation in 1952. Another story says that it was moved after extensions to Buckingham Palace left insufficient space for it.

Work on the arch had started at Buckingham Palace in the mid 1820s and it was completed by 1833. It was originally moved to replace Cumberland Gate as the new entrance to Hyde Park and to complement Decimus Burton’s arch at Hyde Park Corner. Successive roadworks in the 20th century, however, left it in its current position.

Clad in Carrara marble, the design of the arch was inspired by Rome’s Arch of Constantine and the Arc do Carrousel in Paris. The sculptural ornamentation, which includes works by Sir Richard Westmacott and Edward Hodges Baily, however, was apparently never completed and an equestrian statue of King George IV, originally destined for the top of the arch, instead now stands in Trafalgar Square. The bronze gates – which bear the lion of England, cypher of King George IV and image of St George and the Dragon – were designed by Samuel Parker.

Only senior members of the Royal family and the King’s Troop Royal Horse Artillery are permitted to pass under the central arch of the monumental structure.

The arch stands close to where the Tyburn Tree once stood (for more on this, see our earlier post). It contains three small rooms which, up until the 1950s housed what has been described as “one of the smallest police stations in the world”.

There was some talk in 2005 that the arch would be moved to Speaker’s Corner but this obviously hasn’t eventuated.