Hi, kiwi jeanie.
I saw that Invermay Avenue and did wonder about it. The probate record is very clearly typed, but it would not be the first one that manages to make a mess of the address.
However, I do have him, or someone with the same name, in 1963 at 26, Inverness Av, S2, in Auckland, Roskill. He has, possibly, the wrong wife - or he left her behind in England....
Edwin John Biddlecombe.