Could somebody remind me, since I'm getting senile and forgotten, which mod it is that will enable me to assign adresses to lots. I know I've done that before but can't remember what I did or what I used.

That would be Tagger. The command is not under NRaas, but on the Lot menu itself when the mod is present.

Ah yes, I remember now! Thanks! I didn't have Tagger installed, but I do now. And I also remembered that if it's a rabbithole lot you have to click on the ground, not on the building. Now I'm going to have to think up names for all my streets. Since its a Hollywood themed world I thought of naming them after famous movie stars.