What is an Occupational Certificate?

An Occupational Certificate (OC) is an official approval issued by a certifier or local council in New South Wales (NSW), confirming that a newly constructed or renovated building is safe for occupation and complies with all relevant planning and building regulations. It is a legal requirement before a building can be lawfully occupied or used.

The Occupational Certificate is granted once a development meets the conditions set in the Development Consent (from a Development Application) or a Complying Development Certificate (CDC). It ensures that essential infrastructure, such as fire safety systems, drainage, and structural integrity, has been completed correctly. Without an OC, using or occupying a building can lead to legal penalties or restrictions. To obtain an OC, property owners must apply through a registered certifier or the local council, providing documentation that confirms compliance with the NSW Building Code and Planning Regulations.