The Spy Who Came In From The Cold (update)
Slight amendment to the info I gave you:
It's actually Queens Gate Terrace @ the junction with Gloucester Road, Elvaston Place runs parallel & is just south of QGT.
Sorry for the confusion, I use both these roads frequently & got them mixed up. BTW, the buildings in Queens Gate Terrace (behind the line of taxis) are still there so it's a very identifiable location.
Also from The Spy Who Came In From The Cold:
I didn't mention this as I thought it too obvious. Richard Burton takes a taxi, pays the driver & then buys a packet of cigarettes from a vending machine. He then crosses to the other side of the road.
This is Fleet Street EC4 looking towards Ludgate Hill. As he crosses the road the building is the old Daily Telrgraph HQ, still there & unchanged except now it's known as Peterborough Court.