Gazumping Explained for Property Buyers
Gazumping is when a seller accepts a better offer from another buyer after agreeing in principle to sell to you, but before contracts are formally exchanged. In NSW, nothing is legally binding until exchange, so this remains possible even after a price has been agreed.
What Does Gazumping Mean?
Gazumping happens when a seller agrees, verbally or informally, to sell a property to one buyer, then accepts a better offer from someone else before contracts are formally exchanged. Because a property sale in NSW is not legally binding until exchange takes place, an agreed price or a handshake does not lock in the sale, even if the property has been marked "under offer".
Buyers usually come across gazumping during a private treaty negotiation. You might negotiate a price with the agent, believe the deal is done, and start organising building and pest inspections, finance, or a solicitor to review the contract, only to be told the seller has accepted a higher offer from another party in the meantime.
The practical trade-off is time versus certainty. The slower a buyer moves between agreeing a price and exchanging contracts, the more room there is for another offer to come in and change the outcome. Gazumping is not illegal in NSW, so the only real protection is moving through due diligence and exchange as efficiently as reasonably possible.
Why This Matters for Buyers
Gazumping sits at the centre of one of the biggest risks in a private treaty purchase: believing a deal is secure when, legally, it is not. Buyers who relax their pace after agreeing a price, thinking the hard part is over, are the ones most exposed.
Timing becomes a genuine form of leverage. A buyer who has already arranged finance pre-approval, had a solicitor review the contract in advance, and organised a building and pest inspection can move to exchange far faster than one starting that process from scratch after the price is agreed. That speed reduces the window in which a competing offer can appear.
There is also a financial and emotional cost to consider. Buyers who pay for inspections or legal review on a property they ultimately lose to a higher offer have spent money and time with nothing to show for it. Weighing up how much due diligence to complete before versus after a verbal agreement is a real decision, not a formality.
Finally, gazumping affects how buyers should read agent language. Terms like "under offer" or "sold subject to contract" describe the current state of a negotiation, not a guaranteed outcome. Understanding that distinction changes how much confidence a buyer should place in a deal before contracts are exchanged.
Common Mistakes Buyers Make
Most gazumping problems trace back to buyers treating an agreed price as the finish line rather than the start of a race to exchange. A few patterns come up again and again.
- Assuming a verbal yes is binding — an agent confirming your offer has been accepted is not the same as an exchanged contract, and the seller can still accept another offer.
- Leaving due diligence until after the price is agreed — waiting to book a building and pest inspection or send the contract to a solicitor only after "winning" the negotiation adds days the seller can use to consider other offers.
- Underestimating how long finance takes to firm up — a slow path from pre-approval to unconditional approval can stretch out the time between agreement and exchange.
- Not asking the agent to flag when contracts are ready to exchange — buyers who are not proactive about checking in can lose days without realising it.
- Believing a listing marked "under offer" is settled — that status reflects an active negotiation, not a completed sale.
How This Shows Up in the Illawarra
Private treaty is the dominant sale method across much of the Illawarra, more so than in many inner-Sydney markets where auction is the norm. That makes gazumping a more relevant risk locally, since private treaty negotiations are exactly the setting where it occurs.
Tightly held pockets around Wollongong, Thirroul, and Austinmer, along with well-located family homes in Shellharbour and Kiama, can attract genuine competing interest even after a price has been informally agreed, particularly when a property has broad appeal across owner-occupiers and investors. In these situations, the gap between agreeing a price and exchanging contracts is where risk sits.
Buyers relocating from Sydney or interstate sometimes move more slowly through this stage, whether because their solicitor is unfamiliar with the local market or because organising an inspection means coordinating a trip to the region. That extra time is worth planning for, since it directly affects how exposed a buyer is between agreement and exchange.
Practical Takeaway
The best protection against gazumping is preparation before you make an offer, not negotiation after one is accepted. Having finance pre-approval in place, a solicitor ready to review the contract on short notice, and a building and pest inspector you can book quickly all shorten the time between agreeing a price and exchanging contracts.
Once a price is agreed, treat it as the start of a race, not the end of the negotiation. Ask the agent directly what the timeline to exchange looks like, and keep the pressure on your own side of the process rather than assuming the deal will simply happen.
In short: don't relax until contracts are exchanged. Everything before that point is a negotiation in progress, no matter how confident it feels.
Frequently Asked Questions
What does gazumping mean?
It's when a seller accepts a better offer from another buyer after informally agreeing to sell to you, but before contracts are exchanged.
When does gazumping usually happen?
It typically happens during a private treaty negotiation, in the period between agreeing a price verbally and formally exchanging contracts.
Is gazumping risky for buyers?
Yes. It can mean losing a property you believed you had secured, along with any money already spent on inspections or legal review.
Can gazumping be negotiated away?
Not directly, but buyers can reduce the risk by moving quickly to exchange and by asking the agent to keep them informed of the seller's timeline.
Should first home buyers worry about gazumping?
It's worth understanding, particularly if you're new to private treaty negotiations and might assume a verbal agreement carries more weight than it does.
How does gazumping affect timing in a purchase?
It puts pressure on buyers to move efficiently from agreed price to exchange, since a slower process leaves more room for a competing offer.
How does this relate to the NSW buying process?
In NSW, a sale isn't legally binding until contracts are exchanged, which is what makes gazumping possible even after a price is agreed.
Does a buyers agent help with gazumping risk?
A buyers agent can help by having due diligence organised in advance and by managing the pace of negotiation, which reduces the time a property sits exposed to other offers.
If you'd like a second set of eyes before you make an offer, we're happy to talk through how to protect your position. Get in touch and we'll walk you through it.
