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Taxes · IRAS

Architects: Property Numbering and Reconstruction Notifications

Architectural projects can trigger both address-numbering and property-tax information requirements.

Source checked · 11 October 2026

Address numbering

The directory directs architects to House and Unit Numbers. Assigned numbers combine with the street name to identify a property uniquely. Use the official application process rather than independently assigning an address for tax or other government records.

Demolition and reconstruction

Architects and consultants overseeing works should advise owners about notifying IRAS and providing the required property information. The linked reconstruction guide explains the event-specific process. Appointment of a professional does not remove the owner’s reporting obligation.

Official source

A concise, independent Apex Gateway guide based on the official English source, not a reproduction of the complete document. Consult the original for full conditions, exceptions and subsequent updates.

Read the official source ↗
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