At the beginning of The Cuckoo’s Calling, episode 1, Robin gets off the Tube at Leicester Square station and walks down Charing Cross Road to Strike’s office on Denmark Street. In the book she gets off at Tottenham Court Road Station.
In Troubled Blood, Robin exits the tube station at Leicester Square on her 29th birthday on her way to the office.
There are two entrances/exits that are on opposite sides of the street, but it’s unclear exactly which Robin uses.
Below shows the route Robin would walk to the office.
You can find Leicester Square Station on Google Maps here.
