Buying Before Selling in Sydney: Negotiating a Subject-to-Sale Clause

Yes, a Sydney buyer can ask for a subject-to-sale clause, but the seller doesn't have to accept it. It's not part of the standard NSW contract. It only applies if both parties agree to it as a special condition before exchange. A workable clause names the sale milestone and deadline, says what happens to the deposit, and usually gives the seller a right to keep marketing and issue a notice. Your conveyancer should draft or review it before you sign anything.

The Timing Problem Every Upgrader Faces

Most Sydney households who move are selling one property to fund the next. The two transactions rarely line up. The right house in Lane Cove comes up three weeks before the Ryde apartment is ready to list. A downsizer finds the right villa in Castle Hill while the family home is still being prepared for market.

Buying first risks owning two properties and carrying two loans. Selling first risks having nowhere to go. A subject-to-sale clause is one way to close that gap. It's a commercial request, though, not a buyer's right, and how it's negotiated decides whether it actually protects anyone.

Elyment has already covered how a subject-to-finance clause interacts with pre-approval and the deposit. A finance condition depends on a lender's decision. A sale condition depends on another market transaction that the buyer only partly controls, and that's why sellers treat it very differently.

What the Clause Is, and What It Is Not

The standard Contract for the Sale and Purchase of Land used in NSW doesn't contain a subject-to-sale condition. If one applies, it's because the parties added it as a special condition, and its effect depends entirely on the wording.

It isn't automatic. Telling the agent your offer is "subject to selling my place" doesn't put a condition into the contract.
It isn't mandatory. A seller can reject it, accept it with changes, or ask for a higher price or deposit in exchange.
It isn't the cooling-off period. The NSW Government's contracts and deposits guidance sets a 5 business day cooling-off period for most private treaty residential purchases. That's far too short to sell a home.
It isn't usually available at auction. Auction contracts have no cooling-off period and are usually unconditional. Any condition would have to be agreed with the seller before bidding, and that's uncommon.

Why Sellers Push Back

From the seller's side, a subject-to-sale offer takes the property off the market without a guaranteed outcome. The seller also may be buying elsewhere, carrying a bridging loan or working to a move date. Understanding those concerns is the starting point for any negotiation.

Lost momentum

What it means in practice: The campaign stalls and other buyers move on.
How buyers often respond: A short condition period and a right for the seller to keep marketing.

Uncertain outcome

What it means in practice: The buyer's sale may never happen.
How buyers often respond: Evidence the property is listed, appraised and priced realistically.

Price risk

What it means in practice: A better unconditional offer may arrive.
How buyers often respond: A notice mechanism that lets the seller take it.

Their own chain

What it means in practice: The seller may need certainty to buy elsewhere.
How buyers often respond: Flexible or extended settlement, or a stronger price.

In practice, sellers are more open to these clauses when the market is slower, the property has been listed for a while, or the buyer's own property is already listed and likely to sell quickly.

The Four Terms That Decide Whether the Clause Works

1. The Sale Milestone

"Subject to the sale of my property" can mean very different things. The clause needs to say exactly what event satisfies the condition:

Exchange of an unconditional contract on the buyer's property. This gives the seller earlier certainty. The buyer is still exposed if their own buyer fails to settle.
Settlement of the buyer's property. This protects the buyer more. It also keeps the seller waiting longer, so sellers resist it.
A combined approach. The condition is satisfied on unconditional exchange, and the purchase settlement is set for the same day as, or after, the sale settlement.

The clause should also identify the buyer's property by address and title. If the sale must reach a minimum price, the clause should say so.

2. The Deadline

A condition with no end date isn't something a seller will sign. The clause needs a fixed date and time, not "within a reasonable period". Before agreeing to a date, test it against how the sale will really run:

Time to prepare the property: repairs, painting, flooring updates and styling.
Time for the selling agent's campaign. Four to six weeks is common for private treaty sales.
Time to negotiate and exchange, including the incoming buyer's own cooling-off period.
Time for the incoming buyer's finance, if the milestone is settlement.

A deadline that's too short pushes the buyer into a forced decision. One that's too long is unlikely to be accepted. The clause should also say whether either party can extend it, and how.

3. The Deposit

The NSW Government's guidance on selling property notes that the deposit is 10% of the price unless a lower amount, such as 5%, is agreed. For a conditional contract, the terms around the deposit matter as much as the amount:

How much is paid, and when. Some buyers pay a smaller amount at exchange and the balance once the condition is satisfied.
Who holds it. Usually the agent or the seller's solicitor, as stakeholder in trust.
When it's refunded. The clause should state that the deposit is refunded in full if the contract is rescinded under the condition.
Early release. If the seller wants the deposit released early to fund their own purchase, that creates more risk for the buyer and needs separate advice.
Deposit bonds. If a bond is used, its expiry date needs to cover the full condition period and settlement. Elyment explains this in what happens if a deposit bond expires before settlement.

4. The Seller's Escape Mechanism

Most sellers who accept a subject-to-sale clause will ask for a way out. This is often called a "48-hour clause" or "bump clause", and the details vary. A common structure works like this:

The seller can keep marketing the property after exchange.
If the seller receives another acceptable offer, they serve written notice on the buyer.
The buyer then has a set period, often two or three business days, to waive the sale condition and proceed unconditionally.
If the buyer doesn't waive it, the seller can rescind, and the buyer's deposit is refunded.

The buyer needs to know before signing exactly what the notice must contain, how it's served, when the response period starts and ends, and whether a weekend or public holiday counts. The buyer also needs to know whether they could realistically waive the condition at short notice. If that would need bridging finance, the lender should be involved before exchange, not after a notice arrives.

How the Clause Plays Out: A Sydney Example

Consider a couple buying a $2.4 million house in Lane Cove while selling a $1.35 million apartment in Ryde. The seller accepts a subject-to-sale clause on these terms:

Milestone

Agreed position: Unconditional exchange on the Ryde apartment at no less than $1.3 million.

Deadline

Agreed position: 5pm on the 42nd day after exchange.

Deposit

Agreed position: 5% at exchange, held by the agent as stakeholder, refundable if rescinded under the clause.

Seller escape

Agreed position: Seller may keep marketing; buyer has 2 business days after notice to waive.

Settlement

Agreed position: 12 weeks, to allow time for the Ryde settlement.

Three weeks in, the seller receives an unconditional offer and serves notice. The couple now have two business days to decide. They can waive the condition and proceed, which may mean bridging finance. Or they can let the seller rescind and get their deposit back. That decision is far easier if the bridging conversation with the lender has already happened.

The Operational Side: Running Two Transactions

A subject-to-sale clause links the purchase to the sale. Delay on one side affects the other. The conveyancing work needs to be managed as one programme, not two files:

Contracts. The sale contract for the buyer's own property should be ready to go before the purchase exchanges, so marketing can start straight away.
Presentation works. Pre-sale painting, carpet removal or flooring updates need to be booked to suit the campaign start date. They shouldn't happen during it.
Settlement dates. Same-day settlements need lender coordination and buffer time. Elyment covers the risks in whether a seller can change the settlement date after exchange.
Legal costs. Two transactions mean two sets of work. See conveyancing costs when buying and selling at the same time.
Move and renovation planning. If works are planned at the new property, trades shouldn't be locked in until both settlements are certain. Elyment's article on delayed settlements when trades are already booked explains the knock-on effects.

When a Different Structure Makes More Sense

A subject-to-sale clause isn't the only way to manage buying before selling. Depending on the market and the seller, other options may be easier to negotiate.

Long settlement on the purchase

How it helps: Gives time to sell without a condition.
Main trade-off: The buyer is committed. If the sale is slow, they still have to settle.

Bridging finance

How it helps: Allows an unconditional purchase.
Main trade-off: Interest costs and lender limits if the sale takes longer or sells for less.

Sell first, with a long settlement or leaseback

How it helps: Gives certainty about the sale price.
Main trade-off: Risk of not finding the next home in time.

Extended cooling-off by agreement

How it helps: Gives more time to assess, at the 0.25% cost if rescinded.
Main trade-off: Usually days, not weeks. Not enough to sell a property.

The right structure depends on the buyer's finance, the strength of their own property's market and the seller's own timing. A conveyancer and a lender should look at those together before an offer is made.

Questions to Settle Before You Make the Offer

Is the seller willing to consider a conditional offer at all?
Is the condition satisfied by exchange or by settlement of your own sale?
Is a minimum sale price included, and is it realistic?
What is the exact deadline, and can it be extended?
How much deposit is payable, when, and who holds it?
Is the deposit refunded in full if the contract is rescinded under the clause?
Can the seller keep marketing, and what notice must they give?
How long do you have to waive the condition after a notice?
Could you get bridging finance in that time if you had to?
Is your own sale contract ready, and are presentation works booked?

A subject-to-sale clause can make buying before selling possible in Sydney, but only if it's negotiated, written into the contract and drafted to work in practice. It's a request the seller can refuse, and its value depends entirely on the detail.

General Information Only

This article is general information and isn't legal, conveyancing or financial advice. The effect of a subject-to-sale clause depends on its wording and the full contract. Get advice from a NSW solicitor or licensed conveyancer before making a conditional offer or exchanging contracts.

Sources and References

NSW Government and Industry Guidance

NSW Government – Contracts and Deposits When Buying Property
NSW Government: Contracts and Deposits When Buying Property
NSW Government – Steps to Selling a Property
NSW Government: Steps to Selling a Property
NSW Government – Buying Property at an Auction
NSW Government: Buying Property at an Auction
Law Society of NSW – Selling a Home, Before You Sell
Law Society of NSW: Selling a Home, Before You Sell

Additional Related Elyment Article

Settlement Delayed but Trades Are Booked: What Buyers Should Plan Before Renovation Starts
Elyment: Delayed Settlements and Renovation Planning

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