house numbering

House numbering is the system of giving a unique number to each building in a street or area, with the intention of making it easier to locate a particular building. The house number is often part of a postal address. The term describes the number of any building (residential or not) or vacant lot with a mailbox. House numbering schemes vary by place, and in many cases even within cities. In some areas of the world, including many remote areas, houses are not numbered but named.