Where in the world do you live that there are no multi family homes? >Locating a person or business from that entrance is a separate concern. Which must not in

Where in the world do you live that there are no multi family homes? >Locating a person or business from that entrance is a separate concern. Which must not involve 3D or indoor maps. No, it isn't. If it were a separate concern what would be the point of encoding the address in the first place?