Launch of New One-Stop Portal for House and Unit Number and Street and Building Name Applications

The Inland Revenue Authority of Singapore (IRAS) and Street and Building Names Board (SBNB) are pleased to announce the launch of the Property Name and Address digital service on 26 Apr 2023. This new digital service aims to provide greater convenience for users to apply for house and unit number and street and building names on the same platform. You may read the announcement on the Property Name and Address website

Role of IRAS in House and Unit Number Allotment

The Inland Revenue Authority of Singapore (IRAS) has the authority to allocate and amend house and unit numbers of any property under the Property Tax Act.

Importance of Proper Numbering and Unique Addresses

Houses and buildings are numbered to aid identification. Property developers, owners, or representatives must obtain IRAS’ authorization for the use of unique property addresses and display every house and unit number at a conspicuous location. The use of an unauthorized number is an offence under the Property Tax Act.

Guidelines for House and Unit Numbering

A house address comprises
[House Number] [Street Name] [# Unit Number, if any] Singapore [Postal Code]
House and unit numbers must provide clear location cues so that they can be easily identified and located by emergency personnel, delivery services and the public in a quick and efficient way. 

A suitable house/unit number should:
  •  Be relevant to the street where the main entrance/frontage is located 
  • Follow current building and street sequence
  • Prevent confusion with other buildings or units in other parts of Singapore
Applicants should refer to the handbook below for clarity on the house and unit number guidelines and IRAS' considerations when approving the application. 

 

Application Procedure

Property developers, owners, or representatives can apply for house and unit numbers via the Property Name and Address Digital Service. Please ensure that you have the necessary information and documents before making an application. The processing of an application will take 4 weeks upon receipt of complete information.

Upon approval, IRAS will issue a Certificate of Numbering (CON) indicating the list of allotted numbers. 

FAQs

House and Unit Numbers

Do I need to display the allotted address?

The property owner is required to display the house/unit number at a conspicuous place. Failure to display the assigned number or displaying an unassigned number is an offence under the Property Tax Act.

The number shall be marked or displayed as provided for in the Property Tax (Property Numbers) Regulations of the Property Tax Act. You may also reference the display guidelines in the House and/or Unit Number Handbook.

Do I need to inform IRAS when a house/unit number is no longer required?

The property developer or owner is required to submit an application on the withdrawal of number when a house/unit number is no longer required. In situations when a building has been demolished, the house number as well as unit number(s), if any, will be invalid and should therefore be withdrawn.