OC (Occupation Certificate)
What an Occupation Certificate (OC) is in NSW, who issues it, what you need before the PCA can sign it off, and why it matters for handover and finance.
Ask Chalkline about this →An Occupation Certificate (OC) is the document that authorises the lawful occupation and use of a new building (or newly-altered building) in NSW. It is issued by the Principal Certifier (PCA) under the Environmental Planning and Assessment Act 1979 (NSW), ss 6.9 to 6.10 (verified 2026-05-07), once the PCA is satisfied that all conditions of the development consent have been met and the building is suitable for occupation.
What the PCA checks before issuing
Before an OC can issue, the PCA must confirm:
- The building is consistent with the Development Application consent and any Construction Certificate issued.
- All mandatory critical-stage inspections under the EP&A Act have been passed.
- All pre-occupancy conditions of consent have been satisfied.
- A fire safety certificate has been provided (where a fire safety schedule applies), confirming fire safety measures have been installed and verified by a qualified person, per the Environmental Planning and Assessment (Development Certification and Fire Safety) Regulation 2021 (NSW) (verified 2026-05-07).
- Where BASIX applies: a BASIX completion receipt from the Planning Secretary confirms all BASIX commitments have been fulfilled (verified 2026-05-07).
Staged occupation
A partial OC may be issued for a completed stage of a building while other stages remain unfinished (for example, the habitable dwelling is complete but a garage or landscaping is still pending). The condition on a partial OC is that a whole-building OC must be obtained within 5 years of the partial OC being issued (verified 2026-05-07). The previous “interim/final” terminology was removed from the Act on 1 December 2019 but staged occupation remains available.
Why it matters
- Legal occupation: you cannot lawfully occupy a new or newly-altered building in NSW without an OC in force.
- Handover: the OC is the typical trigger for handover and practical completion in the contract.
- Lender requirements: most lenders require an OC (or staged OC) before releasing the final construction drawdown.
- Title and sale: an OC is required before an occupation certificate can be registered on title in most residential conveyancing chains.
Also known as: Occupation Certificate, OC.
Category: Approvals.
References
- Environmental Planning and Assessment Act 1979 (NSW), legislation.nsw.gov.au (verified 2026-05-07). Sections 6.9 to 6.10 govern OC requirements and conditions.
- Stage 6: Get your Occupation Certificate, NSW Department of Planning, Housing and Infrastructure (verified 2026-05-07). Official plain-language overview.
- Environmental Planning and Assessment (Development Certification and Fire Safety) Regulation 2021 (NSW), legislation.nsw.gov.au (verified 2026-05-07). Fire safety certificate requirements before OC issue.
Related
- PCA (Principal Certifying Authority), the certifier who issues the OC
- DA (Development Application), the consent the OC must be consistent with
- Practical completion, the contractual milestone often tied to the OC
- BASIX, NSW energy and water certificate required before OC
- Submitting a DA in NSW, the full approvals pipeline
See also
- CC (Construction Certificate), the approval at the start of construction
- Notice of Commencement, lodged before work starts
Last updated: 2026-05-07. Verified: 2026-05-07. Quarterly review for currency.