Occupation Certificate (OC)

An Occupation Certificate (OC) is a document issued by the local government authority or a private certifier once a building has been completed and is deemed suitable for occupation. It certifies that the construction work has been carried out in accordance with the approved plans and complies with all relevant building codes, regulations, and safety standards. It may also confirm that essential services such as water, electricity, and sanitation are operational.

In the Australian building industry, the terms “Occupation Certificate” (OC) and “Certificate of Occupation” (CO) are often used interchangeably, but they typically refer to the same document.

both the Occupation Certificate (OC) and Certificate of Occupation (CO) in the Australian building industry serve as formal approvals that a building is safe for occupancy.

Scroll to Top