When comparing an occupancy permit vs certificate of final inspection, the key difference is what’s being signed off. An occupancy permit confirms your building surveyor is satisfied a building is suitable for occupation, and where your building permit requires one, you can’t legally move in or use the building until it’s issued. A certificate of final inspection signs off building work that doesn’t need an occupancy permit, most commonly extensions and alterations to an existing home, and your building permit states which one your project will receive.
Both are issued by the relevant building surveyor after the final inspection, and both matter when you sell, refinance or insure. Here’s how they differ, which one you need, and what to do if you can’t find either for your property.
Occupancy permit vs certificate of final inspection at a glance
| Question | Occupancy permit | Certificate of final inspection |
|---|---|---|
| Typical projects | New homes, new buildings and some additions | Extensions and alterations to existing homes, and other work where the permit doesn’t require an occupancy permit |
| What it confirms | The building surveyor is satisfied the building is suitable for occupation | The final inspection has been carried out and the permitted work is signed off |
| Occupation | You must not occupy the building before it’s issued | Usually issued for work to an existing building, such as a house extension |
| Who applies | The owner or the builder | The building surveyor issues it after the final inspection |
| Copy to council | Within seven days of issue | Within seven days of issue, with the approved inspection dates |
What is an occupancy permit?
An occupancy permit is issued by the relevant building surveyor once they’re satisfied the building is suitable for occupation. It’s required where the building permit says so, which is typically the case for new houses, units, small second dwellings and new commercial buildings. The owner or the builder can apply, and before issuing it the surveyor may ask for certificates or statements from the practitioners involved, such as plumbing compliance certificates and energy rating documents.
If your permit requires an occupancy permit, it’s an offence under the Building Act 1993 to occupy the building before it’s issued. Particularly for commercial buildings, the occupancy permit can also record information about how the building is used, such as how many people it can accommodate and the essential safety measures, like fire services and exit signs, that must be maintained.
An occupancy permit isn’t a workmanship warranty. It confirms suitability for occupation at the final inspection, not that every finish is perfect; defects are dealt with under your building contract and warranties.
What is a certificate of final inspection?
A certificate of final inspection is issued by the relevant building surveyor at the end of permitted building work that doesn’t need an occupancy permit. Guidance from the Building and Plumbing Commission (BPC) on the end of your building project says extensions and alterations to existing homes receive one because the existing house should already have an occupancy permit. It’s also often the sign-off for smaller projects such as decks, pergolas, carports and sheds.
Think of it as the formal close-out of your building permit, confirming the final mandatory inspection has been carried out. For a new pool or spa, the certificate of final inspection (or occupancy permit) also starts the 30-day period to register the pool with council.
Which one will my project get?
Check your building permit: it states whether you need an occupancy permit or a certificate of final inspection on completion. As a guide:
- New house, unit or small second dwelling: usually an occupancy permit.
- New commercial or industrial building: an occupancy permit, often listing essential safety measures.
- Extension or alteration to an existing house: usually a certificate of final inspection under BPC guidance, although some councils and surveyors require an occupancy permit for additions to homes (Knox City Council, for example, lists additions as needing one).
- Deck, pergola, carport, shed or garage: often a certificate of final inspection.
If you need to move in by a particular date, confirm with your building surveyor before work starts.
Why do these documents matter?
- Moving in: where an occupancy permit is required, occupying before it’s issued is an offence, and your building contract may tie handover to it.
- Selling: a regulation 51(1) property information certificate, commonly obtained for a section 32 vendor statement, shows building permits issued in the last 10 years along with any occupancy permits or final certificates. A permit with no matching final is a red flag for buyers and their conveyancers.
- Lenders and insurers: construction lenders commonly ask for the occupancy permit before releasing the final payment, and insurers may ask whether work was approved and completed.
- Owner-builders: the date of the occupancy permit or certificate of final inspection starts the six-and-a-half-year period in which extra rules apply if you sell. See our guide for owner-builders in Victoria.
What if my property doesn’t have one?
A missing occupancy permit or final certificate usually means one of three things:
- The final inspection was never booked. If the permit is still current, the builder or owner can book the final and supply any outstanding certificates.
- The permit lapsed before the final. The original surveyor may need parts of the building exposed to confirm compliance before issuing final documents. If only compliance certificates are outstanding, a new permit may not be needed; if work is incomplete, you’ll generally need a new permit for the remaining work.
- The work was never permitted. This is illegal building work, and the municipal building surveyor can issue building notices and orders. It often surfaces when you try to sell. Our illegal building works service explains the options, including our certificate of compliance pathway, which is not a backdated building permit.
The BPC’s page on lapsed permits explains the rules for permits that ran out before completion.
How do I get a copy for an older property?
Building surveyors must give council copies of occupancy permits and certificates of final inspection within seven days of issuing them, so your council’s building department is the first place to look.
- Copies of building records: owners can request copies of permits, occupancy permits, final certificates and plans from council. Anyone else needs the owner’s written consent. Fees and timeframes vary between councils.
- Regulation 51(1) certificate: anyone can apply for this certificate, which lists building permits issued in the last 10 years, any occupancy permits or final certificates, and any current building notices or orders.
- Older records: archives can be incomplete. The City of Yarra, for example, says plans aren’t available for buildings constructed before 1960 in most of its area.
- The issuing surveyor: if a private building surveyor issued the permit, they may also hold a copy.
If no record exists and you need certainty, a building surveyor can inspect and advise what documentation is achievable.
How JLN can help
JLN issues occupancy permits and certificates of final inspection on projects where we’re the relevant building surveyor, and carries out the mandatory inspections that lead to them. If you’ve inherited a missing final or unapproved work, we’ll give you fast, practical advice on the way forward.
Frequently asked questions
Can I move into my new home before the occupancy permit is issued?
No. If your building permit requires an occupancy permit, occupying the building before it’s issued is an offence under the Building Act 1993. Plan your move and lease dates around the final inspection, not the builder’s estimated finish.
Does a house extension need an occupancy permit?
Usually not. BPC guidance is that extensions and alterations receive a certificate of final inspection because the existing house should already have an occupancy permit. Some surveyors and councils do require one for additions, so check your building permit.
Is a certificate of final inspection the same as a plumbing compliance certificate?
No. A compliance certificate is issued by the plumber for their plumbing work, and electricians provide their own electrical safety certificates. The certificate of final inspection is issued by the building surveyor for the building work under the permit, and the surveyor may need the trade certificates first.
Will a buyer ask to see the occupancy permit?
Often, yes. Buyers and their conveyancers look at the regulation 51(1) certificate to see whether recent permits were finalised. Missing finals can lead to questions, delays or price negotiations, so it pays to sort them out before listing.
The builder has gone and I never got a final certificate. What now?
Contact the building surveyor named on the permit, or council if you don’t know who it was. Depending on whether the permit is current or has lapsed, the surveyor may be able to carry out the final inspection, or you may need a new permit for incomplete work.
This article is general information current as of September 2026, not legal advice. Every project is different – ask us to confirm what applies to yours.
Need an occupancy permit or final inspection? Call our building surveyors on 0422 234 951 or request a free quote and we’ll tell you what your project needs.