How gazundering happens
In England, Wales and Northern Ireland, an agreed sale price is not legally binding until contracts are exchanged. That can be weeks or even months after an offer is accepted, while surveys, searches and mortgage approvals take place. Throughout that period, either side can change their mind without legal penalty.
A gazundering buyer exploits that window. Just before exchange, when the seller is emotionally and financially committed, often having found their own onward property, the buyer reduces their offer. Sometimes there is a genuine reason, such as a survey revealing problems, but sometimes it is a purely opportunistic squeeze, banking on the seller being too far down the road to walk away.
It is most common in a buyer's market, when prices are flat or falling and buyers feel they have the upper hand. In Scotland, where the system uses binding missives much earlier in the process, gazundering is far rarer.
Gazundering is not illegal
Until contracts exchange, neither party is legally committed, so reducing an offer is lawful even if it feels unfair. The best defence is to shorten the time between offer and exchange.
Gazundering vs gazumping
They sound alike but happen to different people and in different markets.
| Feature | Gazundering | Gazumping |
|---|---|---|
| Who does it | The buyer | The seller |
| What happens | Buyer lowers the agreed offer | Seller accepts a higher rival offer |
| Who loses out | The seller | The original buyer |
| Common in | A falling or slow market | A rising, competitive market |
| Legal in England and Wales | Yes, before exchange | Yes, before exchange |
How sellers can reduce the risk
- Push to exchange contracts as quickly as possible after accepting an offer.
- Choose a proceedable buyer with a mortgage agreed in principle and no chain where possible.
- Have your solicitor instructed and paperwork ready before you accept.
- Keep the chain short and communicate regularly to spot problems early.
- Price realistically from the start, so the buyer has less leverage to argue down.
What to do if you are gazundered
Stay calm and assess
Decide whether the reduced offer is still acceptable given your onward plans.
Check for a genuine reason
If a survey revealed real issues, a renegotiation may be reasonable.
Know your position
Work out how exposed you are: have you committed to an onward purchase?
Negotiate
You can counter, split the difference, or hold firm if you have other interest.
Consider walking away
If you can relist quickly and the cut is opportunistic, calling their bluff may work.
Move fast next time
Whatever you decide, prioritise a quick exchange with the eventual buyer.