‘Suggestions for Westminster Improvements’ by opening up Whitehall into a ‘Grand Avenue’ between Trafalgar Square and the Houses of Parliament, Westminster For 300 years, from the mid 17th-century up to the 1960s, lots of ideas were floated for developing the land between the Houses of Parliament and Trafalgar Square. The aim was to create a suitable home for the whole civil service that ran Britain and its empire. This 1873 design by Frederick Sang fell by the wayside, like all the others