A Complying Development Certificate (CDC) is issued by a private certifier, rather than your local council.
A Construction Certificate (CC) is a certificate that is issued by an accredited private certifier. The Certificate allows for building work to commence on a project.
An Occupation Certificate verifies that the Principal Certifying Authority (Council or a Private Certifier) is satisfied that the building is suitable to occupy or and satisfies relevant requirements and Australian Standards.
You will require a Strata Certificate if you intend to subdivide or develop land.
Before commencing any approved building or construction work, you must appoint a Principal Certifying Authority (PCA).