A map of 1572 shows Cockspur Street in existence.
In 1746, John Roque’s detailed map of London and ten miles around shows the street and two very narrow passages connecting which were later variously abolished and widened.
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. 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.
Number 1, Oceanic House, was originally the London office of the Oceanic Steam Navigation Company trading as the White Star Line, which operated famous liners including the RMS Titanic. Oceanic House is inscribed twice on the building and it forms part of Canada House.