Ok, well that is The Three Magpies moved into Sipson and the presumably superfluous Heathrow removed from the name. I hadn't noticed Sipson, and it is a perfect fit as you say.

I've deleted the Office, if anyone wants to put a posthumous review/picture up they can always re-add it.

Which just leaves the White Hart, I'm happy to move it out of Heathrow Airport, and agree it is not the "right location" for it particularly, but I am still none the wiser as to where it really is? Cranford if it is a distinct place still looks the best fit to me.