TNC Group — Sunset clauses in off-the-plan contracts: what they are and what to check

Sunset clauses in off-the-plan contracts: what they are and what to check

October 28, 2026•3 min read

Sunset clauses in off-the-plan contracts: what they are and what to check

When you buy off the plan — a house and land package, a townhouse, an apartment — you sign a contract for something that does not yet exist. The contract has to deal with the obvious question: what if it is never finished, or takes far longer than promised? That is what the sunset clause is for. It is one of the most important clauses in an off-the-plan contract, and one of the least read.

What a sunset clause does

A sunset clause sets a date (or a period) by which a defined milestone must be reached — typically registration of the plan of subdivision, or practical completion of the building, or both. If the milestone is not reached by the sunset date, the contract can be ended and the deposit returned. It is the exit door if the project stalls.

Who can walk through that door, and on what terms, is where the detail lives.

What to check

The date. How far away is it? A sunset date well beyond the developer’s advertised completion time is normal — projects run late — but the gap tells you how long you could be waiting, and how long your finance, your circumstances and your plan have to hold.

The milestone. Is it registration of the plan, completion of the building, or both? The two can be months apart. Make sure the clause matches what you actually need to happen before you settle.

Who can end it. Historically, some developers used sunset clauses to walk away from contracts when prices had risen, then resell at a higher price. Several states have since introduced rules that restrict a developer’s ability to rescind under a sunset clause without the buyer’s consent or a court order. Those rules differ by state and continue to change, so the question for your solicitor is simply: in this state, under this contract, who can end it and how?

Extensions and notice. Can the sunset date be extended, by whom, for what reasons, and how much notice must be given? Some contracts allow the developer to extend for delays outside their control; the wording decides how wide that is.

What happens to the deposit. Where is it held, does it earn interest, who receives the interest, and how quickly is it returned if the contract ends?

Your other conditions. A sunset clause sits alongside finance, valuation and building-inspection clauses. Check that the whole set works together over the timeframe involved — a finance approval given today may not be valid at a settlement two years away.

Why the timeline matters to the plan

An off-the-plan purchase is a long commitment with a moving end date. Your borrowing capacity, the lender’s policy, interest rates, your income and the market can all move between signing and settlement. The plan needs a buffer for that — in time and in money — and it needs a clear picture of what you would do if the sunset date arrived without a building.

Where this sits in the method

At TNC Group, contract review is part of the Execute step, and it is your solicitor or conveyancer who reads and advises on the sunset clause. Our role is to make sure the timeline in the contract fits the timeline in your plan, and that the questions above are asked before the offer, not after the handshake.

Buying off the plan and want the timeline checked against the plan? Book a free 15-minute call — book here — or visit www.tncgroup.com.au.

General information only. This is not legal advice. Sunset-clause rules differ by state and change over time — have your solicitor or conveyancer review any contract before you sign.

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