Cork Street in Mayfair, running parallel to Old Bond Street is shown on the above map, and on the same  map, reproduced below with it’s location indicated by a blue arrow.

Jane Austen References

The home of Benjamin Langlois, Tom Lefroy’s patron and uncle was in Cork Street and it was probably while staying there that Jane Austen wrote her letter to Cassandra Austen dated the 23rd August 1796.

Map: Section from Smith’s New Map of London 1809 by Charles Smith