[1] In 1746, John Roque's detailed map of London and ten miles around shows Cockspur Street and two very narrow passages connecting, which were later variously abolished and widened.

[2][3] After Regent Street was built heading north, Pall Mall was extended directly east.

This enabled the present one-way flow around the triangle facing the north side of Cockspur Street.

[3] All the small-plot properties between Cockspur Street and the newly formed Pall Mall East were pulled down, leaving a triangular site which was taken by the College of Physicians and the Union Club.

[6] The celebrated 'Irish Giant' Charles Byrne, who was reputedly just over 7 feet 7 inches tall (2.31m), died in 1783 at the age of 22 at his lodgings in Cockspur Street.