The green arrow on the map below shows the entrance to Bedford Chambers in the Covent Garden Piazza, just to the left of the Rock Garden Restaurant. Covent Garden itself is at the foot of James Street which is pedestrianised and connects Long Acre with the Piazza. Covent Garden tube station (Piccadilly Line) exits into James Street so turn right on coming out of the station and proceed to the foot of James Street. There is an entrance intercom to the left of the door to Bedford Chambers, and the SSL offices are on the second floor in the Cubitts Yard wing of the building. There is another door entry system there - when you are buzzed through, continue up the corridor, turn right at the end, and go through the heavy fire door into reception.