The Speculator's Block: Using the Doctrine of Laches to Defend Against Delayed Settlements in QLD
- John Merlo

- 2 days ago
- 12 min read
QLD developers: Learn how the Doctrine of Laches can be your shield against purchasers who delay settlement to speculate on the market. Protect your project's viability.
Key Takeaways
Laches is Your Defence: The Doctrine of Laches is a powerful equitable defence that can protect you from purchasers who unreasonably delay settlement, especially in a rising property market.
Prove Prejudice: A successful defence hinges on proving the purchaser's delay was unreasonable and that it caused you prejudice (e.g., lost opportunities, increased costs, or significant market changes).
Action is Required: This is not an automatic right. You must actively build a case by meticulously documenting delays and demonstrating how the purchaser's inaction has harmed your position.
Legislation is Evolving: The new Property Law Act 2023 modernises property transactions, potentially shifting the goalposts on what constitutes a "reasonable" timeframe and making a proactive legal strategy essential.
When a Buyer's Silence Becomes a Strategic Gamble
For Queensland property developers, it's a scenario that can turn a successful project into a financial quagmire. You have an off-the-plan contract for a unit in your new Brisbane development. As the settlement date approaches, the purchaser goes quiet. Emails go unanswered, and calls are not returned. The property market is flat, and you suspect they have buyer's remorse. Months, or even a year, pass. You assume the deal is dead and move on.
Then, the market surges. That same unit is now worth significantly more than the original contract price. Suddenly, the silent purchaser reappears, solicitor's letter in hand, demanding to complete the sale at the original, now well-below-market price. This isn't just a delay; it's a form of market speculation where the purchaser waits to see if the deal becomes profitable before committing, using your project as a free option.
This strategic gamble poses a significant risk to your cash flow, project planning, and overall profitability.
This is where an old but powerful legal principle becomes your most important defence: the Doctrine of Laches. It is the "Speculator's Block"—an equitable remedy designed to prevent this exact type of injustice. This article will explain how Queensland developers can use this doctrine to defend their projects, terminate contracts with dormant buyers, and protect their commercial interests from those who "sleep on their rights."
What is the Doctrine of Laches? A Developer's Shield
The Doctrine of Laches is not a specific law passed by parliament, but a principle of fairness developed over centuries in the courts of equity. It provides a crucial defence in situations where a strict application of the law would lead to an unjust result, particularly in disputes over a contract of sale.
The Core Principle: Equity Aids the Vigilant, Not the Tardy
At its heart, the doctrine is captured by the Latin maxim, “Vigilantibus non dormientibus aequitas subvenit.” This translates to: "Equity aids the vigilant, not those who sleep on their rights." In practical terms, it means that a court of equity, such as the Supreme Court of Queensland, will not grant a remedy like "specific performance" (an order forcing a party to complete a contract) to someone who has unreasonably delayed in asserting their rights, especially if that delay has harmed the other party. Laches acts as a shield, preventing a party from ambushing another with a stale claim for equitable relief.
How Laches Differs from Standard Limitation Periods
It's essential to distinguish laches from standard statutory limitation periods. Laws like the Limitation of Actions Act 1974 (Qld) set fixed deadlines for bringing legal actions—for example, six years for a breach of contract. However, that Act specifically states that these fixed limitation periods do not apply to claims for purely equitable relief, such as specific performance.
This is the critical gap that the Doctrine of Laches fills. A purchaser might technically be within the six-year statutory window to sue, but if they have waited an unreasonable amount of time—say, 18 months during a booming property market—and their delay has prejudiced the developer, a court can still bar their claim based on laches. It focuses on the fairness of the situation, not just the calendar.
Why This Matters for Off-the-Plan Contracts
Developers involved in off-the-plan sales are uniquely vulnerable. The long periods between signing the contract and the settlement date, combined with the potential for significant market fluctuations, create a perfect environment for speculative delays by purchasers.
A developer relies on the certainty of timely settlements to manage project finances, pay contractors, secure funding for future stages, and maintain commercial momentum. A purchaser's unreasonable delay is not a minor inconvenience; it can disrupt the entire financial foundation of a project, making this equitable defence a vital tool in a developer's legal arsenal.
Identifying the "Speculator": Key Elements of a Laches Defence
To successfully invoke the Doctrine of Laches, a developer can't simply point to a delay. You must build a case that satisfies three core elements: unreasonable delay, prejudice caused by that delay, and the purchaser's acquiescence or waiver of their rights. Effective evidence gathering is crucial for success.
Proving Unreasonable Delay by the Purchaser
The first pillar is demonstrating that the purchaser's delay in seeking to enforce the contract was unreasonable. "Unreasonable" is not a fixed number of days or months; it is entirely dependent on the context of the transaction and the nature of the property. In a rapidly rising property market on the Gold Coast, a six-month delay could be deemed highly unreasonable, whereas in a stable market, it might be viewed differently.
To establish this, you must show that the purchaser was aware of their obligation to settle but consciously failed to act. This is where meticulous documentation becomes your best evidence.
A clear record of unanswered calls, unread emails, and formal notices sent to the purchaser or their solicitor paints a picture of a party who has abandoned their obligations, strengthening the argument that their subsequent attempt to enforce the contract is unjustifiably late.
Demonstrating Prejudice: The Heart of Your Case
Delay alone is not enough. The heart of a laches defence is proving that the purchaser's delay caused you, the developer, tangible prejudice or harm.
This prejudice can take several forms:
Evidentiary Prejudice: This occurs when the delay makes it harder to defend a case (e.g., witnesses have disappeared, memories have faded, or documents have been lost).
Structural or Economic Prejudice: This is far more common and powerful for property developers. It refers to a situation where the developer has changed their position or suffered a loss based on the reasonable assumption that the purchaser had abandoned the contract.
Examples of economic prejudice include:
A significant increase in the property's value, which would give the purchaser a windfall profit they did not risk, making the original sale price inequitable.
Entering into new contracts with suppliers or financiers for a subsequent project stage, based on the expected cash flow from the original settlement.
Incurring costs to re-market the property or redesigning a part of the development, assuming the unit was now available.
Establishing the Purchaser's Acquiescence or Waiver
The final element is to argue that the purchaser's prolonged silence and inaction constitute acquiescence—an implicit agreement that the contract is over. By knowing they had a right to settle and choosing not to act on it for an extended period, they effectively led you to believe they had abandoned or waived that right.
A court of equity is unlikely to reward a party who decides to "sit on the fence," waiting to see if the market moves in their favour before deciding to enforce their rights. Their inaction, coupled with your resulting prejudice, forms the basis for the court to refuse their claim.

Building Your Case: Practical Steps for Developers
A successful laches defence is not accidental; it is built through diligent risk management, meticulous documentation, and a clear understanding of your contractual and equitable rights. For developers, this means taking proactive steps from the moment a contract is signed.
The Critical Role of "Time of the Essence" Clauses
Nearly every standard Queensland property sales contract contains a "time of the essence" clause. This is a vital component that formally establishes that all dates and deadlines in the contract are essential terms. Its inclusion means that any failure by the purchaser to settle on the specified date is not just a minor delay but a breach of a fundamental condition of the agreement.
While this clause is not a silver bullet that automatically wins your case, it provides a powerful contractual starting point. It strengthens a laches argument by making it clear from the outset that timeliness was a primary concern, making any subsequent delay by the purchaser inherently more significant and unreasonable.
Documenting Every Communication (and Lack Thereof)
The power of a laches defence often lies in the story you can tell through your records. Creating an unassailable paper trail is non-negotiable. This process should begin in the weeks leading up to the settlement date with polite, professional follow-ups. If the date passes with no action from the purchaser, you must transition to more formal communication. Send notices of default and, eventually, a notice of termination, even if you receive no response.
This documented silence becomes powerful evidence. It demonstrates to a court that you acted reasonably and diligently, while the purchaser ignored their obligations, thereby proving their acquiescence and the unreasonableness of their delay. This systematic approach is a cornerstone of effectively resolving property disputes.
Gathering Evidence of Market Shifts and Project Changes
To prove prejudice, you need concrete evidence that goes beyond your own testimony. This involves gathering objective data and internal records that show how you changed your position due to the purchaser's delay.
Key evidence includes:
Historical Property Valuations: Obtain reports from qualified valuers for the specific area (e.g., Brisbane CBD, Sunshine Coast) showing the increase in property values between the original settlement date and the date the purchaser re-emerged.
Internal Records: Collate documents such as revised project plans, new financing or loan arrangements that were based on different cash-flow projections, or marketing materials for a re-launch of the property. These records demonstrate that you made real-world business decisions based on the reasonable assumption that the original sale had fallen through.
When to Engage a Construction Lawyer
The moment a purchaser misses a key date without communication is the moment you should be considering legal advice. Waiting until they reappear months later puts you on the back foot. Early engagement allows for the proper issuance of notices that strengthen your position and can prevent the issue from escalating. If you find yourself in a situation where a buyer is delaying, seeking strategic advice from a building and construction lawyer is not a last resort; it's a critical risk management step.
The Legal Landscape: Laches in the Queensland Supreme Court
The principles of equity are timeless, but their application evolves with changes in legislation and judicial attitudes. For Queensland developers, understanding the current legal landscape, including new legislation and recent court decisions, is crucial for a successful legal strategy.
The Impact of the New Property Law Act 2023
The new Property Law Act 2023 (Qld), set to commence on a date to be proclaimed, represents a significant modernisation of Queensland’s property laws. It introduces a statutory seller disclosure scheme and further facilitates e-conveyancing, aiming to make transactions more transparent and efficient. While the Act does not directly alter the equitable Doctrine of Laches, its impact will likely be felt in court.
By streamlining the conveyancing process, the Act may subtly influence a court's perception of what constitutes a "reasonable" time for settlement. With fewer procedural hurdles, a court may show less tolerance for delays, potentially lowering the bar for what is considered an "unreasonable" delay by a purchaser. Developers and their legal advisors, including members of the Queensland Law Society, will need to monitor how judicial interpretation evolves.
Lessons from the Cav Gasworks Sunset Clause Case
A recent high-profile case involving the Cav Gasworks development in Brisbane, while focused on the misuse of sunset clauses by a developer, offers a critical lesson for all parties in a property transaction. The court ordered the developer to repay $6.1 Million in profits after finding it had deliberately delayed completion to terminate contracts and resell units at a higher price.
The key takeaway is that the courts are taking an increasingly dim view of any party—developer or purchaser—who appears to be "playing the market" through contractual timing. This reinforces the core principle of equity: a party seeking a remedy must come to the court with "clean hands." A developer who has acted diligently and fairly is in a much stronger position to argue that the purchaser's speculative delay should not be rewarded.
Statutory Defences vs. Equitable Relief
Warning: Do not assume that your contract's default clauses are your only protection. While essential, they are statutory tools. A purchaser may try to argue against them, but the Doctrine of Laches provides a separate, powerful line of defence in equity. Relying solely on the contract without considering an equitable defence like laches is like building a wall with only half the bricks. Both are needed for a complete defence against protracted litigation.
What are the Potential Outcomes of a Successful Laches Defence?
Successfully arguing laches can do more than just win a court case; it can restore commercial certainty to your project and protect your bottom line. The outcomes are significant and directly address the harm caused by a speculative purchaser.
Barring the Purchaser's Claim for Specific Performance
The primary remedy a delayed purchaser will seek from the court is an order for "specific performance." This is a directive forcing you, the developer, to complete the sale and transfer the property at the original, now-discounted price. A successful laches defence acts as a complete and total bar to this remedy. The court will essentially declare that the purchaser, through their own unreasonable and prejudicial delay, has forfeited their right to demand the sale. This is the ultimate "speculator's block."
Retaining the Deposit and Reselling the Property
Once the court has barred the purchaser's claim, the path is cleared for you to take decisive commercial action. You can proceed with formally terminating the contract based on their original breach (failure to settle).
This typically entitles you to retain the purchaser's deposit as compensation. Most importantly, you are then free to resell the property on the open market at its current, higher value. This not only mitigates the losses caused by the delay but also ensures the project's financial viability is protected.
Avoiding Costly and Protracted Litigation
A well-prepared laches defence is also a powerful settlement tool. When a speculative purchaser and their legal team are presented with a robust body of evidence demonstrating unreasonable delay and clear prejudice, they are far less likely to risk a costly and uncertain court battle they are likely to lose. This can lead to a quicker, more commercially sensible resolution, such as the purchaser agreeing to walk away from the contract. This proactive approach, guided by experienced commercial property law experts, can save a developer significant time, money, and the immense stress of a trial.
Protecting Your Project from Speculative Delays
In a fluctuating property market, the Doctrine of Laches is more than a historical legal principle; it is a crucial, modern tool for Queensland developers facing opportunistic delays from purchasers. It ensures that equity prevails, preventing buyers from using their own inaction as a speculative weapon. By understanding the "Delay, Prejudice, Acquiescence" framework, you can actively defend your project's commercial integrity.
The best defence is a proactive one. Meticulous documentation, the enforcement of "time of the essence" clauses, and the gathering of clear evidence of prejudice are not just legal formalities—they are the building blocks of a powerful equitable shield. In a volatile market, protecting your project requires both strong contracts and a smart equitable strategy that anticipates and counters speculative behaviour.
Navigating the complexities of Queensland’s building and construction law demands expertise. For tailored advice on safeguarding your development from costly delays and navigating these complex situations, contact Merlo Law.
FAQs
What is the Doctrine of Laches in simple terms?
The Doctrine of Laches is a legal defence based on fairness. It prevents someone from enforcing their rights if they have waited an unreasonably long time to do so, and their delay has caused harm or prejudice to the other party. Essentially, it stops people from "sleeping on their rights" only to reappear later when it's most advantageous for them, especially in property matters.
How long of a delay is considered "unreasonable" for a laches defence in QLD?
There is no fixed timeframe. "Unreasonable" depends entirely on the circumstances. In a fast-moving property market like the Gold Coast or Sunshine Coast, a delay of a few months could be considered unreasonable. The court will look at the nature of the contract, the market conditions, and what a reasonable person would have done in the same situation.
Can I use a laches defence if my contract already has a default clause?
Yes. A default clause in a contract is a contractual remedy. The Doctrine of Laches is an equitable defence. They can and should be used together. While you may terminate a contract under its default clauses, a purchaser could challenge that termination. The laches defence provides a separate, powerful argument in court that, due to their delay and the prejudice you suffered, they have lost the right to challenge your termination or demand the sale.
What kind of evidence is most powerful for proving "prejudice" to a developer?
The most powerful evidence is economic. This includes official property valuations showing a significant market price increase during the delay, new financing agreements you entered into based on the assumption the sale had failed, and internal project plans that were altered. This evidence demonstrates that you tangibly changed your financial and operational position because of the purchaser's inaction.
Does the new Property Law Act 2023 change the Doctrine of Laches?
The Act does not explicitly change the doctrine itself. However, by modernising and streamlining the conveyancing process, it may influence how courts view delays. With transactions becoming more efficient, a court might have less patience for unexplained delays, potentially making it easier to argue that a purchaser's inaction was "unreasonable."
Is a laches defence only for off-the-plan contracts?
No, while it is particularly useful for off-the-plan contracts due to their long settlement periods and market volatility, the Doctrine of Laches can be applied to any situation where a party seeks an equitable remedy (like specific performance) after an unreasonable and prejudicial delay. It can apply to standard residential property contracts as well. For more information, see our publications.
This guide is for informational purposes only and does not constitute legal advice. For advice tailored to your specific circumstances, please contact Merlo Law








Comments