Door Numbering - Apartment Numbers

Apartment Numbers

Some apartments are numbered using the regular room number assignment method, where apartment 1412 will be the 12th room on the fourteenth floor. Some apartments, however, are assigned with a number followed by a letter. There may be one or two numbers in the apartment number, followed by just one letter. For example, apartment 14R would be on the fourteenth floor. Apartment 7B would be on the seventh floor. Some apartment buildings may use compass points or the letters F, C, or R to indicate the front, center, or rear apartment on a given floor, or a combination of the two. For example, apartment 4RS would be on the 4th floor, and is the south apartment in the rear of the building.

Some apartment complexes use the first digit or first two digits to indicate the building instead of the floor, and the second or third digit to indicate the floor. For example, an apartment complex with 15 buildings might have the buildings numbered 1-15, or 100-1500 in multiples of 100. An example of an apartment number would be 412 - on the first floor (1) of building 4 or building 400, or 1204 - on the ground floor (0) of building 12 or building 1200.