Material changes and plan variations — off-the-plan contracts in NSW and Victoria

The short version

Off-the-plan, the thing you buy is described on paper: a draft plan, a schedule of finishes, a set of dimensions. By the time it's built, some of that will have moved. Most changes are minor and expected. But a material change — the lot ends up meaningfully smaller, a car space disappears, the layout is redrawn — is different. In both NSW and Victoria the law gives you a right to be told, and sometimes a right to walk away or claim compensation. The catch is that these rights run on short clocks, so the danger isn't the change itself — it's missing the window to respond to it.

What counts as "material"

Not every variation triggers a right. Developers keep flexibility for genuine construction reasons — a light fitting swapped for an equivalent, a wall shifted by a few centimetres. A change becomes material when it affects something a reasonable buyer relied on: the size or boundaries of your lot, the number of bedrooms or bathrooms, parking, the common property you share, or a substantive drop in the quality of finishes. The test is whether you're adversely affected, not whether anything moved at all.

NSW — notice, rescind or claim up to 2%

Since December 2019, a residential off-the-plan contract in NSW must include a disclosure statement with the draft plan, proposed schedule of finishes and any proposed by-laws. Under the Conveyancing Act 1919 (NSW) and its regulation, if a material particular in that disclosure changes and you're adversely affected, the vendor must serve you a notice. From there you generally have two options: rescind within 14 days of the notice, or proceed and claim compensation of up to 2% of the price. That 2% is a ceiling on this particular remedy, not an estimate of your loss — on a $900,000 purchase it caps at $18,000. The disclosure statement you signed is the yardstick, so keep your copy and compare the registered plan against it before settlement, not after.

Victoria — plan amendments and the right to withdraw

In Victoria the plan of subdivision usually isn't registered when you sign, so it can be amended before it is. Under the Sale of Land Act 1962 (Vic), where the vendor amends the plan in a way that will materially affect the lot you're buying, you must be told — and you can generally end the contract within 14 days of being informed, recovering your deposit. What "materially affect" covers is fact-specific; a shrinking lot or a lost car space is a much stronger case than a cosmetic tweak. The vendor statement (Section 32) is your baseline here, the same way the disclosure statement is in NSW — there's more in our Section 32 guide.

Where the contract does the real work

Statute sets the floor; the contract sets everything above it. Off-the-plan contracts routinely include variation clauses that let the developer make changes "reasonably necessary" during construction, or substitute finishes for others "of equal or better quality". Those phrases are doing a lot of lifting. A clause that lets the vendor vary the plan and pre-declares that no such variation will be treated as material is trying to contract you out of the right to object. That's exactly the kind of drafting worth reading closely — the protections above are strongest when the contract hasn't quietly narrowed them.

What to check before you sign

1. Keep the baseline. Save the disclosure statement (NSW) or Section 32 and plan (VIC) exactly as signed — every later change is measured against it.
2. Read the variation and substitution clauses. What can the developer change unilaterally, and does the contract try to pre-label those changes as "not material"?
3. Check the finishes are fixed, not "indicative". Renders and display suites aren't the contract; the schedule of finishes is.
4. Note the response windows. Both states run on roughly 14-day clocks from notice — know who tells you, how, and by when you must act.
5. Watch tolerances on area. A clause allowing the floor area to reduce by a set percentage with no adjustment to price shifts that risk onto you.

Common questions

The apartment I'm buying is smaller than the plan I was shown. Can I get out?

Possibly. A reduction in lot size is one of the clearer material changes. In NSW it would normally trigger the notice regime, with a 14-day window to rescind or a right to claim compensation; in Victoria a plan amendment that materially affects the lot gives a right to end the contract within 14 days. How the change is characterised, and what your contract's tolerance clauses say, will decide it — take advice quickly, because the clock is short.

The developer swapped the finishes for cheaper ones. Is that allowed?

It depends on the substitution clause. Many contracts permit finishes of "equal or better quality", which is a genuine standard you can hold them to — a demonstrably cheaper substitute may breach it or amount to a material change. Compare what was delivered against the schedule of finishes you signed, not the marketing brochure.

Isn't this the same as a sunset clause?

No — they're different rights. A sunset clause is about the deadline for the plan to register; material-change rights are about what gets built when it does. Both matter off-the-plan and often appear in the same contract. See our sunset clauses guide and the wider NSW and Victorian off-the-plan guides.