Buying a home or an investment property in New Zealand moves through a few key moments. One of the biggest is the point your agreement goes unconditional and you pay your deposit. It can feel like a formality, but legally, something real happens: from that moment you hold an interest in the property, even though the title still has the seller’s name on it.
Key terms at a glance
| Term | What it means |
|---|---|
| Unconditional | Every condition in the agreement (finance, LIM, builder’s report) has been satisfied or waived. The deal is locked in. |
| Deposit | The sum paid on going unconditional, usually held in the agent’s or a lawyer’s trust account until settlement. |
| Equitable interest | Your recognised stake in the specific property from the point you go unconditional, even though legal title has not transferred to you yet. |
| Caveat | A formal notice registered against the title under section 138 that protects your equitable interest until settlement. |
| Settlement | The day legal title transfers into your name and, in a normal purchase, your caveat is withdrawn. |
What “going unconditional” actually means
Most sale and purchase agreements start out with conditions: finance, a builder’s report, a LIM, or a due diligence period. While those conditions are still unmet, the deal can fall over. Once every condition is satisfied (or you sign to confirm the agreement is unconditional) and the deposit is paid, the contract is locked in. Both you and the seller are committed to settlement.

The interest you now hold: your “equitable interest”
Here is the part a lot of buyers don’t realise. Once your agreement is unconditional and the deposit is paid, the law treats you as already having a stake in that property. Lawyers call this an equitable interest.
The full legal ownership, the legal title, stays with the seller until settlement day, when it transfers into your name. But in the eyes of the law you are more than someone holding a promise. You have a recognised interest in that specific piece of land.
Equitable interest: a legal recognition that you have a genuine stake in a particular property, even though the title has not yet been transferred into your name.
A rough way to picture it: imagine you’ve agreed to buy a specific second-hand car, paid your deposit, and signed a binding contract. The seller is holding the car for you until you collect it. It isn’t registered in your name yet, but it’s yours in every meaningful sense, and the seller can’t turn around and sell it to someone else. Land works in a similar way, except with land there is a public register, and a way to put everyone on notice that you have that interest. That’s the caveat.
How a caveat protects your interest (section 138)
Under section 138 of the Land Transfer Act 2017, a person who has an interest in land, including a buyer under an unconditional agreement, can lodge a caveat against the title. If you’re buying property, this is one of the tools your lawyer may talk to you about.
What a caveat does
A caveat is a formal notice recorded against the property’s title. It doesn’t transfer ownership to you, and it isn’t a court order. What it does is act as a kind of stop sign on the register: it prevents the seller from registering most dealings with the property without you being notified first.
What it stops the seller doing
While your caveat sits on the title, the seller generally cannot quietly:
- sell the property to someone else and register that sale
- take out a new mortgage or refinance against the property
- register other dealings that would cut across your interest
without the caveat surfacing and you finding out. If someone does try to deal with the title, you are notified and have a window to take steps to protect your position.
What a caveat is, and isn’t
| A caveat DOES | A caveat does NOT |
|---|---|
| Put your interest on the public record | Transfer ownership into your name |
| Stop most dealings registering without notice to you | Force the seller to settle |
| Give you notice and a chance to act if someone tries to deal with the title | Act as a court order or injunction |
| Protect a genuine interest you already hold | Create an interest you don’t actually have |

When would you actually register a caveat?
Not every buyer lodges a caveat. On a short, straightforward purchase many don’t: the deposit is paid, settlement is only a few weeks away, and there’s little real risk in the gap. It’s a judgment call, and one worth talking through with your lawyer. There are two situations where it comes up most often.
| Settlement gap | Typically |
|---|---|
| A few weeks | Often skipped, little real risk in a short gap |
| Three months or more | Usually registered, protects your position for the whole period |
| Something has already gone wrong with the deal | Worth raising with your lawyer regardless of the gap |
Long settlements
The clearest case is a long settlement. If there’s a big gap between going unconditional and settlement, say three months or more, you’re exposed for that whole period. A lot can change in a seller’s circumstances. Registering a caveat secures your position and puts everyone on notice that the property is already spoken for.
When the caveat comes off
A caveat isn’t permanent. In a normal purchase, once you reach settlement, the caveat is withdrawn at the same time as settlement, you no longer need it, because you’re now the registered owner. Your lawyer handles this as part of the settlement process so the transfer can register smoothly.
A word of caution: caveats aren’t a free-for-all
A caveat protects a genuine interest you already hold. It doesn’t create one you don’t have.
Quick checklist: is a caveat worth considering?
Is a caveat worth considering?
0/0 completeWhether you’re buying your first home or an investment property, understanding the interest you hold, and protecting it properly, is part of getting the deal right. Our buying property team can talk you through whether a caveat makes sense for your purchase. Contact NZ Legal to get started: fill out our quick contact form and we’ll be in touch within one business day.
Sources
- Land Transfer Act 2017, ss 138-143Governs who can lodge a caveat and on what basis.
- Land Information New Zealand (LINZ) — caveats guidanceLINZ's practical checklist for lodging and withdrawing a caveat.
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