It’s the middle of 2026 and listings are hard to come by. A local agent had an Inner West property in front of him and an owner who wasn’t going to market, and the reason had nothing to do with price.
The owner had done work on the house and never received an Occupation Certificate (OC). One condition on the council approval, the Development Application (DA), was in the way: a boundary wall had to be painted, and the only practical access was through the neighbour’s yard. The neighbour had said no.
Every other agent the vendor had spoken to gave them the same response, which was to get the OC sorted and then talk about price. This agent asked something else first: what would it actually take to get it moving?
What an Occupation Certificate actually is
In NSW, an OC comes from a private certifier. In a nutshell, it’s a document confirming the building is fit for occupation — that the work is complete, that it complies with Australian Standards, and that it satisfies the conditions council set out in the DA.
That’s the mechanism. The certifier signs off, and the document tells a buyer, a lender or anyone else that the building is finished, compliant and safe.
There are two kinds. An interim OC covers part of a building, or the whole of it where some conditions are still outstanding, and it lets you occupy in the meantime. A final OC is the one that closes the job out. If you’re selling, the final is the one that matters.
It also rules a line under the DA. The approval process is closed off, and nobody can come back later and say the work wasn’t done the right way, because it’s been signed off. (It doesn’t stop a neighbour raising an issue about something outside the DA. That’s council’s call, and a separate conversation.)
You can still sell. You just sell for less.
Here’s the part that gets overstated: a missing OC does not stop you buying or selling a property. You can list it, you can sell it, and a buyer can buy it tomorrow.
What it does is raise a red flag. The buyer’s solicitor will see there’s been work done with no OC and will typically warn them off, and the buyer is right to be cautious, because what they’re taking on is unknown. Getting an OC after the fact means either a planning process or physical work, and often both. Both carry time, cost and risk.
So the property sells at a discount. From a builder’s point of view that can be an opportunity; from a vendor’s point of view, it’s money left on the table. Finishing a renovation and not closing out the OC can substantially devalue the property you just spent money improving.
And you can live in the house without one
Nobody is going to stop you living in your own home. There’s no one coming to the door.
The exposure is longer-term. The first part of it is liability: if something has been built outside the standard and someone is injured, that sits with the property owner as well as the builder. Australian Standards are specific for a reason, there’s a maximum gap permitted in a balustrade, and if a small child falls through one that isn’t compliant, that’s a real liability. An OC is evidence the work was checked against those standards.
The second is that the DA is never formally closed out, so the door stays open.
Then there’s insurance, which is less clear-cut. Not having an OC doesn’t stop you getting insured. Whether a policy responds to a claim arising from non-compliant work is a different question, and one to put to your insurer or broker in writing rather than assume either way.
And when you do eventually sell, there’s the discount.
Why conditions get stuck in the first place
DA conditions are not black and white. They’re text on a page and they have to be interpreted. Conditions can contradict each other, some are genuinely ambiguous, and occasionally council will impose one that contravenes an Australian Standard.
In practice, it’s usually one or two conditions that become the sticking point, and they always prove tricky. The certifier’s problem is simple: how can they be sure the condition is met? Where it’s ambiguous, they’ll be conservative, which is the right instinct from their side and the reason things stall.
Which means there’s negotiating room, not to get around a condition, but to establish that it’s been complied with. If you’re not sure which conditions apply to your property, the determination sits on the NSW Planning Portal and it’s the first thing to read.
What we worked through on this one
Every stuck OC is stuck for its own reason. This one was a wall that had to be painted and a neighbour who said no, so what follows are answers to that specific problem. A different condition would need different thinking, and the solution is rarely the one you’d guess from the outside.
What does carry across is the approach. Treat the condition as a problem to be solved rather than a wall to sit behind and get someone in the room who solves them for a living. Here’s what we put on the table.
A planning lawyer’s letter. An experienced planning solicitor, a specialist rather than a general lawyer, sets out why in their opinion the condition is complied with and that there’s another reasonable way to read it. Most of the time the certifier is comfortable with that. It isn’t a threatening letter; it’s a credible opinion they can keep on file and point to if a complaint comes later.
Compelling reasonable access. Go to the solicitor and explain the situation. A neighbour can’t unreasonably deny access and the mechanisms exist, but they take time, so this wasn’t the preferred route here.
Going over the top. Most people don’t realise you don’t own the airspace above your property, and neither does your neighbour. We know this from installing cranes. So there was a version where the owner leans over from their own property and paints their own wall from above, without ever setting foot next door and without trespassing. Not ideal, but it’s a solution.
None of those three were obvious to the owner, and none of them were obvious to the agent. That’s the whole point. A dead end turned out to have three ways out of it once the right people were looking at it.
The outcome
We put the vendor in touch with our planning lawyers, the team that handles all our planning work.
The agent got the listing. What the vendor valued was that he engaged with the problem and looked for a way to unblock their path to putting the house on the market.
A certificate and a DA condition sit well outside what an agent is expected to know, so it’s understandable that the usual advice is to get it sorted first and talk once it’s resolved. But that leaves the vendor where they already were, holding a problem with nowhere to take it.
There’s a wider lesson in all of this that isn’t only for agents. In any business you assume the objection is price. It usually isn’t, and it pays to sit with the client and ask what’s actually stopping things from moving forward.
If you’re stuck
Agents — we work with agents across the Inner West on exactly this sort of problem, before the listing is won.
Homeowners — if you’ve got work that was never signed off, or a DA condition you can’t get past, [tell us where it’s stuck] and we’ll let you know what we think.
Frequently Asked Questions
What is an Occupation Certificate?
A document from a private certifier confirming a building is fit for occupation — the work is complete, it complies with Australian Standards, and it meets the conditions set out in the Development Application (DA). It also formally closes out the DA.
What’s the difference between an interim and a final Occupation Certificate?
An interim OC covers part of a building, or the whole of it where some conditions are still outstanding, and lets you occupy in the meantime. A final OC closes the job out completely. If you’re selling, the final is the one that matters.
Can you sell a house without an Occupation Certificate?
Yes. A missing OC doesn’t stop you selling and it doesn’t stop anyone buying, but it’s a red flag. The buyer’s solicitor will usually advise caution, and the buyer takes on the risk, time and cost of resolving it, so the property typically sells at a discount.
Can you live in a house without an Occupation Certificate?
Yes. Nobody can stop you living in your own home. The consequences are longer-term: liability if work isn’t compliant and someone is injured, a DA that’s never formally closed out, potential questions on an insurance claim, and a discount when you sell.
Does a missing OC affect home insurance?
It doesn’t stop you being insured. Whether an insurer would pay a claim arising from non- compliant work is a separate question that depends on the policy, and one to confirm with your insurer or broker directly.
Why do Occupation Certificates get stuck?
Usually one or two DA conditions. Conditions are text on a page, open to interpretation, sometimes contradictory, and occasionally in conflict with an Australian Standard. Where it’s ambiguous a certifier will be conservative, because they need to be sure the condition is met.
Can a DA condition be complied with by interpretation rather than done to the letter?
Often, yes. There’s negotiating room, not to avoid a condition but to establish it’s been complied with. A planning solicitor’s opinion setting out an alternative reasonable interpretation is frequently enough for a certifier to sign off.
What does a planning lawyer’s letter do?
A specialist planning solicitor sets out why, in their opinion, the condition is complied with. It isn’t a threatening letter. It gives the certifier a credible opinion to keep on file and the confidence to sign off.
Does a neighbour have to give access for work required by a DA condition?
A neighbour can’t unreasonably refuse access, and there are legal mechanisms to resolve it.They take time, so it’s usually better to explore other routes first, including whether the work can be done from your own property or your own airspace.
What is Property Agent Support?
A free line for real estate agents. When a buyer or vendor needs to know what’s possible with a property, you get a quick answer, and we can be part of your team in the early phase when you’re pitching for a listing.
