Thanks Warin! Yes, going well, and I think you're right. However before removing it I think it's best to check it out in person first. I see you live in the Epping area! Do you mind checking it out?

P.S. I live in Epping too.

I think you're right, should this be a general rule where any A/B housenumber should be converted into addr:unit=A, addr:housenumber=B? Or are there exceptions to the rule?