What "buying off the plan" actually means

Buying off the plan means entering a contract to purchase a property — usually an apartment, townhouse or a house-and-land package — before it is built or before the title formally exists. You are not inspecting a finished dwelling. You are committing on the strength of architectural plans, a schedule of finishes, a proposed strata or community plan, and the developer's undertaking to build and register title by a future date.

For investors the appeal is real: you lock in a price in today's market, pay a deposit, and then have months or years before settlement to arrange finance and watch the area develop. Depreciation benefits on a new build and, in some cases, duty concessions can sweeten the numbers. But the same time gap that creates opportunity also creates exposure. Between signing and settlement, the market can shift, your circumstances can change, and the project itself can be delayed, altered or — in some cases — cancelled. Understanding those risks is the difference between a good acquisition and an expensive lesson.

Sunset clauses and developer rescission

Almost every off-the-plan contract contains a sunset clause. This is a long-stop date by which certain events — typically registration of the plan and issue of title, and sometimes completion of construction — must occur. If they do not happen by that date, one or both parties can rescind (end) the contract and the deposit is returned.

The clause exists for a sensible reason: no one should be bound indefinitely to a project that stalls. The concern for buyers has always been the reverse scenario — a developer letting the sunset date pass, cancelling contracts, and re-selling the same lots at higher prices in a risen market. To address this, several states have introduced reforms that restrict a developer's ability to rescind under a sunset clause: broadly, the developer may need the buyer's consent, or an order from a court or tribunal, before ending the contract, and must show the delay was genuine rather than opportunistic.

What matters practically is how the clause is drafted in your contract. Look at what triggers the sunset date, how long it runs, whether only the developer can extend it, and what happens to your deposit and any interest if the contract ends. A one-sided sunset clause — where the developer can extend the date repeatedly but you cannot walk away — is a serious red flag.

The valuation gap at completion

This is the risk that catches the most investors, and it has nothing to do with the developer's conduct. When you buy off the plan, your lender does not do a final valuation until close to settlement, often years after you agreed the price. If the market has softened, or if an oversupply of similar apartments has hit the area, the bank may value the finished property below the contract price.

Because lenders advance a percentage of the valuation — not the contract price — a lower valuation means a smaller loan. You are still contractually bound to pay the agreed price, so you must make up the shortfall in cash. On a purchase that valued short by, say, tens of thousands of dollars, that gap lands on you at the worst possible moment, with settlement days away and your deposit already committed.

• Build a genuine buffer — do not budget on the assumption the valuation will match your price.
• Understand that a pre-approval today is not a guarantee of finance at settlement years later.
• Ask what happens if you cannot complete: which remedies the developer has, and whether your deposit and further damages are at risk.

Changes to plans, finishes and floor plans

You are buying something that does not exist, so the contract usually gives the developer some latitude to vary it. Fixtures and finishes may be substituted for "equivalent" items, floor areas can shift within a stated tolerance, common property and unit layouts can be adjusted, and the strata or community scheme documents can be finalised differently from the draft you first saw.

Some variation is unavoidable in a multi-year build. The question is how much, and who decides. A well-drafted contract limits the developer's variation rights, sets tolerances (for example a maximum percentage change to floor area before you can object), and gives you rights if a material change reduces the value or usability of what you are buying. A poorly drafted one lets the developer change almost anything and leaves you bound regardless. This is exactly the kind of risk-shifting a contract review is designed to surface.

Long settlements and finance risk

Off-the-plan settlements are long — sometimes 18 months, sometimes several years. A lot can change across that window: interest rates, lending policy, your income, your other holdings, and the amount of comparable stock coming to market around the same time as your building. Lenders assess you against the rules in force at settlement, not the rules that applied when you signed.

Treat the finance timeline as a core part of your due diligence, not an afterthought. If several hundred apartments in the same precinct settle in the same quarter, valuations and rents can be under pressure precisely when you need them to hold. Model the deal on conservative assumptions, keep your borrowing capacity in good shape through the wait, and know your contractual position if finance falls short at the end.

Is your deposit protected?

On an off-the-plan purchase you typically pay a deposit — often around ten per cent — a long time before you get anything tangible. Where that money sits, and what happens to it if the deal unravels, deserves close attention. Deposits are commonly held in a trust account or provided by way of a deposit bond or bank guarantee rather than released to the developer. The contract should be clear on how the deposit is held, who earns any interest, and the circumstances in which it is returned to you.

If the developer's financial position is weak, or if the contract allows the deposit to be released to the developer before completion, your exposure rises. Reviewing the deposit mechanics — alongside the sunset and finance terms — is a standard part of the legal work before you sign.

Stamp duty timing and concessions can differ for off-the-plan

Duty on property is a state tax, and the way it applies to off-the-plan purchases can differ from an established sale — both in when duty is assessed and in what concessions may be available. Some states offer off-the-plan duty concessions in defined circumstances, and the timing of when duty becomes payable can hinge on the contract and the stage of construction. These settings vary by state, depend on your situation, and change from year to year.

Choosing the correct buying entity matters here too. Whether you buy in your own name, through a company or trust, or via a self-managed super fund, the entity affects duty, financing and compliance — and getting it wrong can be costly to unwind. Decide the structure before you sign, not after.

The due diligence a lawyer runs before you sign

The most valuable thing a property lawyer does on an off-the-plan deal is review the contract before you commit, so risks can be negotiated out rather than lived with. At Corporate Legal, a qualified property lawyer — not just a conveyancer — runs every file, so if a clause needs negotiating or a dispute later emerges, you already have a lawyer who can act. Before you sign, that review typically covers:

1. The sunset clause — the long-stop date, what triggers it, who can extend or rescind, and how it sits against current state rules.
2. The developer's variation rights — what can change in the plans, finishes and scheme documents, and your rights if a material change occurs.
3. Deposit protection — how and where the deposit is held, and the conditions for its return.
4. Finance and completion terms — the settlement trigger, notice periods, and your position if a valuation falls short.
5. The strata or community scheme — the draft by-laws, budgets and levies, which for a completed scheme we can assess through a strata report review.
6. The buying entity and duty timing — confirming the right structure and flagging duty and concession issues for you and your accountant to confirm.

Off-the-plan contracts are drafted by the developer's lawyers to protect the developer. Independent review levels the field. We act across NSW, VIC, QLD and WA, applying the correct contract requirements and duty rules for each state — useful if you are building a portfolio across more than one.

This article is general information only, current as at July 2026, and is not legal, financial, taxation or investment advice. Property law, stamp duty and thresholds differ between states and change over time. You should obtain advice specific to your circumstances before acting. Corporate Legal provides legal and conveyancing services only.