Ely Place is a gated road at the southern tip of the London Borough of Camden in London, England. It is the location of the Old Mitre Tavern and is adjacent to Hatton Garden.
The cul-de-sac was constructed in 1772 by Robert Taylor on land which had been the site of Ely Palace or Ely House, the London residence of the Bishops of Ely from 1290 to 1772 .It is the last privately owned street in London, having been originally an exclave of Cambridgeshire the location of the medieval abbey at Ely for the Bishops of Ely, and is managed by its own body of commissioners and beadles.
The estate was granted to Sir Christopher Hatton in 1577 after a commission was set up by Queen Elizabeth I, headed by John Aylmer (Bishop of London) to investigate the claims that Sir Christopher Hatton should be granted the freehold of the land after he acquired a 21 years lease on the estate and spent a sum of the £1,887 5 shillings and 8 pence on renovations and repairs. The commission declared (June 1577) that Ely Place should stay with Bishop Cox if he could reimburse Sir Christopher Hatton in whole for the outlay but he could not. A new lease was drawn up giving Sir Christopher Hatton control of the property freehold. He gave his name to Hatton Garden which occupies part of the site.
The estate was sold to the Crown in 1772. The cul-de-sac was constructed in 1772 by Robert Taylor. Edmund Keene as Bishop of Ely commissioned a new Ely House, also built by Taylor, on Dover Street, Mayfair.
More information on the Wikipedia page [1]