I feel as it would be realistic to add the Clarence House. What is this house I speak of? This house is where the current King lives at and is right behind St. James Palace. What is the purpose if we already have Buckingham Palace? This would make the game more realistic and would allow to places for His or Her Majesty to travel to. King Charles lives at CH because it is more modern and he believes Buckingham Palace is outdated. I feel that this house should be added if we have a game based off the monarchy and London.
This has already been suggested. 