Menu
A-Z: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Building numbering

Why do we number buildings? 

Building numbering affects everyday life in our city. Building numbering, as well as street naming, have to be provided by law and, when made correctly, provide an easy method for identifying places for people who live here and also for visitors and people who work in the city. They also assist the easy identification of premises by emergency services, postal services and utility providers. 

How are buildings numbered?

Individual properties built on plots of land or existing buildings converted into new units will be numbered into the existing relevant street. If there is not a sequential number available, the council will use the addition of letters (for example 2a). We will notify you of the numbering allocation we choose for your property. 

Properties (including those on corner sites) are numbered according to the street in which the main entrance is located. We will not manipulate the numbering of a building to give it a ‘prestige’ address or to avoid an address which is thought to have undesired associations. 

Apartments are numbered not lettered, for example Flat 2, 21 Smith Street (NOT Flat A, 21 Smith Street), as letters are used for infill properties. 

The council has no powers to name a house or building. Building names alone are not favoured by the council or the emergency services; a number readily identifies the relative location of a property in the street. 

Where a property has a number, it must be used and displayed. Normally it should be placed so that it can be easily read from the public highway. 

Street naming 


Contact us
Building control
028 9027 0650
Building Control
Ground Floor
Cecil Ward Building
4-10 Linenhall Street
Belfast
BT2 8BP