Where was 'HP' shot?

[tactalk2001]

Thanks to everyone who has responded to me off-list about the 
location of the exterior shot of 'The Leaky Cauldron', and thanks 
for the welcome to the group. I'm not sure that the mystery is 
solved, and I may not have been clear about exactly which shot I 
meant. Let me try to describe it more closely:-

After Harry and Hagrid leave the island, you get a general shot of 
the Houses of Parliament and River Thames. The next shot is 
Harry and Hagrid walking outside Leadenhall Market (the big 
white building), opposite Kent's grocery store. (It is definitely 
Leadenhall Market; you can actually see the name above the 
arch). It's the next shot that I am trying to pin down; where they 
approach the black facade of the 'Leaky Cauldron', and the pub's 
name fades in on the sign-board. I don't think that it is a set; look 
at the surrounding buildings. To the right, there is what is 
obviously a second-hand bookstore, complete with a rack of 
books outside and an intercom and a sign saying 'More Books 
Upstairs'. To the left is either an antiques store or a thrift store; it 
seems to have a name beginning with 'C'. It's all a bit too 
shabby, a bit too genuinely London, to be a set.

I have heard vague rumours that it was shot in Charing Cross 
Road (which is famous for its second-hand bookstores), but I 
walked up and down that street a couple of weeks ago, and 
nothing matched.

Does this shed any light on the subject?

Thanks and regards,
Nicholas