Buying property off the plan risks are easy to overlook when a polished display suite and an artist’s impression make everything look perfect. Off-the-plan purchases involve committing to a property that does not yet exist, and the gap between signing a contract and reaching settlement can stretch well beyond 12 to 24 months.
During that time, market conditions, interest rates, personal finances, and even the development itself can all shift in ways that catch buyers off guard.

The risks of buying off-the-plan range from valuation shortfalls and borrowing capacity changes to contract traps, construction delays, and developer insolvency, so thorough checks before signing are not optional.
Both first home buyers attracted by stamp duty concessions and investors chasing capital growth need to treat an off-the-plan property purchase with the same rigour they would apply to any major financial commitment.
This article breaks down the key financial, legal, and practical risks involved in buying off the plan in Australia. For anyone who wants tailored guidance on how an off-the-plan purchase fits their lending situation, the team at Kingslend Financial can be reached on 1300 068 880 or through kingslend.com.au to talk through borrowing options.
Key Takeaways
- Off-the-plan buyers face financial risks including valuation shortfalls, changing interest rates, and shifts in borrowing capacity between exchange and settlement.
- Contract clauses such as sunset clauses, variation clauses, and termination rights can significantly change a buyer’s position if not reviewed by an independent property lawyer.
- Practical due diligence covering stamp duty concessions, body corporate fees, developer track records, and construction timelines is essential before signing any off-the-plan contract.
How Off-the-Plan Purchases Work

Off-the-plan sales follow a different process to purchasing an existing property. Buyers commit to a purchase based on plans, display suites, and marketing materials, then wait for construction to finish before settlement occurs and ownership transfers.
What You Are Actually Committing To
When someone signs an off-the-plan contract, they are agreeing to buy a property that has not been built or, in some cases, has not even started construction. The purchase decision relies on floor plans, artist renderings, architectural models, and sometimes a display suite that may not reflect the exact unit being purchased.
The buyer typically pays a deposit at exchange, often around 10% of the contract price, with the remaining balance due at settlement once the building is complete. This means committing to a price today for something that will be delivered months or years later.
Common Property Types and Buyer Profiles
Most off-the-plan purchases in Australia involve units, townhouses, or apartments in medium- to high-density developments. House and land packages also fall into this category in some cases.
The two most common buyer profiles are:
- First home buyers drawn by government grants, stamp duty concessions, and the ability to save more during the construction period.
- Investment property purchasers looking for capital growth, depreciation benefits, and premium rental returns from a brand-new property.
From Exchange to Settlement
The timeline from exchange to settlement typically ranges from 12 to 24 months, though delays are common. During this period, the buyer does not own the property and cannot move in or rent it out.
Key steps in the process include:
- Paying the deposit at exchange (usually 10%)
- Waiting for construction to progress and complete
- Receiving notification that settlement is approaching
- The lender conducting a bank valuation of the finished property
- Completing settlement and taking ownership
Some off-the-plan contracts include a “subject to finance” clause, but this is not always standard. Buyers should confirm this with their solicitor before signing.
The Biggest Financial Risks Before Settlement

The time gap between signing an off-the-plan contract and reaching settlement creates real financial exposure. Borrowing capacity, property values, and lending conditions can all move against a buyer during the construction period.
Borrowing Capacity Changes Over Time
A pre-approval obtained at the time of signing does not guarantee the same loan will be available at settlement. Pre-approvals typically expire after 90 days, and lenders reassess borrowing capacity based on the buyer’s circumstances at the time of the final application.
Factors that can reduce borrowing capacity include:
- A change in employment or income
- New debts or increased living expenses
- Tighter lending policies introduced by banks
- Changes to interest rate buffers used in serviceability assessments
A buyer who qualified for a certain loan amount two years ago may find they no longer meet the same criteria when settlement arrives.
Valuation Shortfalls and Cash Gap Risk
At settlement, the lender will order an independent bank valuation of the completed property. If that valuation comes in below the contract price, the buyer faces a shortfall.
For example, if a buyer purchased a unit for $700,000 but the bank values it at $650,000, the lender will base its loan on the lower figure. The buyer must then find the $50,000 gap from their own funds.
CoreLogic data can shift significantly over a construction period. Declining market conditions in a particular area can make this scenario more likely.
Interest Rates, LMI and Approval Conditions
Interest rates can rise substantially between exchange and settlement. Higher rates reduce borrowing power and increase ongoing mortgage repayments.
If the loan-to-value ratio changes because of a valuation shortfall or reduced deposit savings, Lenders Mortgage Insurance (LMI) may be triggered, adding thousands of dollars to the cost. Lenders may also impose stricter approval conditions for off-the-plan properties in certain postcodes or developments, particularly where there is a high volume of similar units settling at the same time.
A mortgage broker such as Kingslend Financial can help buyers stress-test their borrowing position across different rate scenarios before committing to an off-the-plan contract.
Contract Clauses That Can Catch Buyers Out

Off-the-plan contracts are typically long, complex, and drafted by the developer’s legal team. Several clauses can significantly affect a buyer’s rights and financial position if they are not carefully reviewed and understood.
Sunset Clauses and Sunset Dates
A sunset clause sets a deadline, known as the sunset date, by which the developer must complete the project and settle the sale. If construction is not finished by that date, either party may have the right to terminate the contract.
In the past, some developers exploited sunset clauses by deliberately delaying projects so they could cancel contracts and resell at higher prices. Legislative reforms in NSW and Victoria now require developers to obtain a buyer’s consent or a court or tribunal order before exercising a sunset clause to rescind.
Buyers should still check the specific sunset date and understand their rights if it passes.
Variation Clauses and Plan Changes
Many off-the-plan contracts include variation clauses that allow the developer to make changes to the plans, specifications, or finishes. These can range from minor material substitutions to more substantial changes in layout, lot size, or common areas.
Some contracts define acceptable variations broadly, giving the developer wide discretion. Buyers should look for clauses that limit the scope of changes and provide a right to rescind if the variations are material.
Termination Rights
Both the buyer and the developer may have termination rights under the contract, but they are not always balanced. Developers may retain the right to terminate under more circumstances than buyers.
Buyers should understand:
- Under what conditions the developer can terminate
- Whether the full deposit will be refunded if the contract is cancelled
- What happens to any interest earned on the deposit
Cooling-Off and Other Contract Traps
Most states provide a cooling-off period for off-the-plan purchases, typically ranging from five to ten business days depending on the jurisdiction. During this period, the buyer can withdraw from the contract, though a small penalty (often 0.25% of the purchase price) may apply.
Key contract traps to watch for include:
- Clauses that shorten or waive the cooling-off period
- Unclear terms around deposit handling and trust account requirements
- Broad indemnity clauses that shift risk to the buyer
- Ambiguous definitions of “completion” or “practical completion”
Construction, Developer and Property Risks

Beyond the financial and contractual issues, the physical delivery of the off-the-plan property carries its own set of risks. Construction delays, developer insolvency, and differences between what was promised and what is delivered are common concerns.
Construction Delays and Moving Timelines
Delays are one of the most frequently reported issues with off-the-plan developments. Supply chain disruptions, labour shortages, weather events, and council approval hold-ups can all push timelines out by months or even years.
For the buyer, delays can mean:
- Extended rental costs while waiting for the property
- Pre-approval expiry and the need to reapply for finance
- Changes to personal circumstances that affect the ability to settle
- Increased holding costs if interest rates rise during the wait
The sunset date in the contract provides some protection, but a distant sunset date can leave buyers locked into a lengthy wait.
Developer Insolvency and Project Uncertainty
If a developer becomes insolvent before or during construction, the project may stall or be abandoned entirely. In this scenario, the buyer’s deposit should be held in a trust account and returned, but recovering funds can be a slow and uncertain process.
Buyers should research the developer’s track record, financial stability, and history of completed projects before committing. Checking whether the deposit will be held in a statutory trust account rather than used by the developer during construction is an important step.
Quality, Inclusions and Finished Product Mismatches
A display suite is designed to sell. It may feature upgraded finishes, premium appliances, or a layout that differs from the actual unit the buyer is purchasing.
The off-the-plan contract and its schedules of finishes and inclusions are what the buyer is legally entitled to, not the display suite.
Common mismatches include:
- Lower-grade materials or fittings than expected
- Smaller room sizes than the display suite suggested
- Different views, natural light, or noise levels
- Missing inclusions that were assumed but not specified in the contract
Buyers should always cross-check the contract specifications against what was shown during the sales process.
Legal and Conveyancing Checks Before You Sign
Getting the legal side right is one of the most important steps when buying off the plan. The complexity of off-the-plan contracts makes independent legal advice essential, not optional.
Why Independent Legal Advice Matters
Off-the-plan contracts are typically prepared by the developer’s solicitors and are written to protect the developer’s interests. A buyer who signs without independent legal advice may unknowingly agree to terms that limit their rights or expose them to significant risk.
A property lawyer or conveyancer who is experienced in off-the-plan conveyancing can identify problematic clauses, explain obligations in plain language, and negotiate amendments where possible.
What a Property Lawyer or Conveyancer Should Review
At a minimum, a legal review of an off-the-plan contract should cover:
- Sunset clause terms and the buyer’s rights if the date passes
- Variation clauses and the extent of allowable changes
- Deposit arrangements including trust account details
- Termination rights for both parties
- Disclosure documents including strata plans, by-laws, and schedules of finishes
- Defect rectification obligations and warranty periods
- Cooling-off period terms and any waivers
State-Based Rules, Disclosure and Property Law Issues
Property law governing off-the-plan purchases varies between states and territories. In NSW, for example, developers must provide a disclosure statement, and buyers have specific rights if the information changes materially before settlement.
In Victoria, the Sale of Land Act sets out requirements around section 32 statements and plan registration. Each state also has different rules around cooling-off periods, deposit limits, and the buyer’s right to rescind.
Buyers should ensure their legal adviser is familiar with the specific property law requirements in the relevant state or territory.
Costs, Concessions and Practical Due Diligence
Understanding the full cost picture and conducting practical checks before signing can prevent costly surprises at settlement and beyond.
Stamp Duty, Transfer Duty and Available Concessions
Stamp duty, also known as transfer duty, is one of the largest upfront costs of buying property. Off-the-plan buyers may be eligible for stamp duty concessions in most states, which can result in significant savings.
The concession typically applies because duty may be calculated on the land value only (excluding the building component) at the time of contract exchange. Eligibility depends on factors including:
- The state or territory where the property is located
- Whether the buyer is a first home buyer
- Whether the property will be an owner-occupied home or investment property
- The total contract price
First home buyers may also qualify for the First Home Owner Grant (FHOG), which applies to new properties including those purchased off the plan.
Body Corporate Fees and Ongoing Ownership Costs
For units and townhouses, body corporate fees (also called strata levies) are an ongoing cost that buyers should factor into their budget. These fees cover shared building maintenance, insurance, and common area upkeep.
In new developments, initial body corporate fees may be set low to attract buyers but can increase substantially once the owners’ corporation takes control. Buyers should request projected body corporate budgets and check whether any capital works or sinking fund contributions are anticipated.
A Pre-Signing Checklist for First Home Buyers and Investors
Before committing to any off-the-plan purchase, buyers should work through the following:
| Check | Detail |
|---|---|
| Developer research | Track record, completed projects, financial stability |
| Independent legal advice | Contract review by an experienced property lawyer or conveyancer |
| Finance pre-approval | Confirmed borrowing capacity with buffer for rate changes |
| Valuation risk | Comparable sales data in the area to assess realistic values |
| Stamp duty concessions | Eligibility confirmed with a solicitor or state revenue office |
| Body corporate estimates | Projected levies and sinking fund contributions reviewed |
| Contract specifications | Inclusions, finishes, and plans cross-checked against marketing materials |
| Sunset clause review | Date confirmed and termination rights understood |
Frequently Asked Questions
What are the most common pitfalls when purchasing an off-the-plan apartment or townhouse?
The most common pitfalls include valuation shortfalls at settlement, changes to borrowing capacity during the construction period, and receiving a finished product that differs from the display suite or marketing materials. Contract traps such as broad variation clauses and unfavourable sunset clauses also catch many buyers off guard.
How can delays in construction affect settlement timelines and my finances?
Construction delays can push settlement out by months or years, causing pre-approvals to expire and forcing buyers to reapply for finance under potentially different lending conditions. Extended delays also mean additional rental costs, possible interest rate increases, and changes in personal financial circumstances that may affect the ability to complete the purchase.
What happens if the finished property differs from the display suite, plans or specifications?
The buyer’s legal entitlement is based on what is specified in the off-the-plan contract and its schedules, not on what was shown in the display suite. If the finished property matches the contract terms, the buyer may have limited recourse even if it looks different from the marketing materials.
This is why having a property lawyer review every specification before signing is critical.
How do valuation shortfalls at settlement impact my ability to secure finance?
If the bank valuation at settlement is lower than the contract price, the lender will base the mortgage on the lower figure. The buyer must then cover the gap from personal savings.
This can also change the loan-to-value ratio, potentially triggering LMI or causing the loan application to be declined.
What contractual clauses should I review closely before signing an off-the-plan contract?
Key clauses to review include the sunset clause and sunset date, variation clauses that allow changes to plans or finishes, termination rights for both parties, deposit handling arrangements, cooling-off period terms, and any provisions that limit the buyer’s right to rescind.
Independent legal advice is strongly recommended before signing.
What protections apply if the developer becomes insolvent before completion?
If the developer becomes insolvent, the buyer’s deposit should be protected in a trust account and returned.
Legislative protections vary by state.
In practice, recovering funds can be slow.
The buyer may lose the opportunity cost of having money tied up.
Researching the developer’s financial position and checking deposit trust arrangements before signing can reduce this risk.



