1735–1737, possibly by Matthew Brettingham. Now houses the High Commission of the Republic of Cyprus. No. 14: Occupied by the London Library since 1845, rebuilt for them 1896–98 and subsequently extended to the rear. No. 15: Lichfield House, by James Stuart, 1764–6. Balcony added circa 1791 by Samuel Wyatt. So-called after Thomas Anson, 1st Earl of Lichfield, resident when the Lichfield House Compact was agreed there in 1835. Now offices. No. 16 and site of former No. 17: East India Club, built in 1865 to designs by Charles Lee. No. 18: Italianate reconstruction of 1846. Now apartments. No. 19: The London home of the Dukes of Cleveland and family from 1720 to 1894. A replacement building of 1898–99 used variously as offices and residentially was replaced by the present stone-clad offices in 1999–2000. Current site of the Rolex UK headquarters. No. 20/21: Robert Adam's reconstruction of No. 20 for Sir Watkin Williams-Wynn from 1771 to 1775 is one of the most praised of his smaller works. The house was three bays wide and had three main storeys plus an attic. In 1936 it was extended to include the rebuilt No. 21 to its south, forming a uniform seven bay façade with an extra full storey on top. This address became the London offices for the enterprise software company Autonomy Corporation in December 2010. (Former) No. 22 and adjacent buildings: replaced by the Army and Navy Club 1848–51. It had a bold Venetian exterior. This has been lost and the present building is in a mean mid 20th century style. In 1851 it was one of the residences of the Bishop of London, Charles James Blomfield. Nos. 22A to 30: See above. Little historical or architectural significance, except that the now defunct Junior Carlton Club once occupied a grand clubhouse at the western end of the block. No. 31: Norfolk House – the London residence of the Dukes of Norfolk for many generations, was built between 1748 and 1752 by Edward Howard, 9th Duke of Norfolk to the design of Matthew Brettingham "the Elder", and was demolished in 1938. It was then replaced by a neo-Georgian office building of the same name which was U.S. General Dwight D. Eisenhower's headquarters during the Second World War, where Operation Torch and Operation Overlord were planned. No. 32: Built by Samuel Pepys Cockerell and Charles Robert Cockerell in 1819–21. Later alterations. Used as offices.