Section 9AC Sale of Land Act Off-the-Plan Buyer Rights

We get asked about this whenever an off the plan buyer opens an email from the developer and sees the words 'minor plan amendment'. It is especially stressful when the apartment, townhouse or car space they thought they bought suddenly looks a little different.

The short answer: Under section 9AC of the Sale of Land Act 1962 (Vic), a vendor must give written notice within 14 days if the plan of subdivision changes after you sign an off the plan contract and before the plan registers. If the amendment materially affects your lot, you usually have 14 days from receiving notice to rescind the contract and seek return of your deposit. You cannot sign this statutory right away in the contract, and court decisions show that even a change below 5% can still be material.

What does section 9AC do for off the plan buyers?

Section 9AC protects Victorian off the plan buyers when the plan of subdivision changes before registration. It gives buyers a short but powerful right to step away if the amended plan materially affects the lot they agreed to buy.

When you buy off the plan, you are signing for a future lot that does not legally exist yet. The plan of subdivision is the document that will eventually define the lot, including boundaries, area, car parking, storage, common property, easements and owners corporation arrangements.

That is why off the plan conveyancing needs closer attention than a standard purchase of an existing home. You are relying on draft plans, draft owners corporation schedules and contract promises while council, surveyors, service authorities and Land Use Victoria work through the subdivision process.

Section 9AC does not stop a developer from changing the plan. It forces the change into the open, then gives the buyer a decision point if the change matters.

When does section 9AC apply in Victoria?

Section 9AC applies when the contract is for a lot on a plan of subdivision that is not yet registered when you sign. That can include a CBD apartment, a Brunswick townhouse, a vacant block in a growth corridor estate, or a duplex subdivision in the suburbs.

It applies to amendments to the plan of subdivision, not every change to the building or inclusions. A shifted internal wall, different tapware or changed joinery may raise contract or building issues, but section 9AC is focused on the subdivision plan itself.

Section 9AC is also separate from sunset clauses. Sunset clause rights deal with delay and registration time limits under sections 10A to 10E of the Sale of Land Act. Section 9AC deals with what happens when the plan changes before registration.

Once the plan registers, the lot has its title basis and the section 9AC amendment process usually no longer applies to new changes.

What does 'materially affect' mean under section 9AC?

A plan amendment materially affects your lot if a reasonable buyer in your position would regard the change as meaningful. The Sale of Land Act does not define the phrase, so Victorian court decisions guide how it is applied.

The question is not just whether the change looks big on paper. It is about the practical effect on the lot you bought.

Examples that may be material include:

a smaller apartment area, especially where the loss comes from a key room
a bedroom shape that makes furniture placement harder
less natural light because of a light court or window change
a car park lot becoming common property or exclusive use instead of a separate lot
common property becoming a council reserve or road
changed lot entitlement or lot liability affecting voting rights or owners corporation costs
new or changed easements that limit how the land can be used.

The leading Victorian case often discussed is Burger v Longboat Holdings Group2 Pty Ltd [2021] VSC 469. There, a reduction below 5% was still found to materially affect the relevant apartments, partly because the reduction fell heavily on the master bedroom. The decision is a useful warning: a contract clause saying changes under 5% are not material does not control the statutory test.

The earlier Lockwood v PSP Investments Pty Ltd [2013] VSC 10 also shows that car park and common property changes can matter. The effect may be physical, financial, practical or tied to ownership rights.

In our practice, we've seen buyers assume that a developer's 'minor amendment' label is the final word. It isn't. The label is only the vendor's description; the legal question is what the amendment actually does to your lot.

What should a section 9AC notice include?

A useful section 9AC notice should tell you what changed, when it changed and how to compare the new plan against the contract plan. The notice will often come from the vendor's solicitor by email.

A buyer should look for:

the date the plan was amended
the date the notice was served
the amended plan of subdivision
a clear description of each amendment
any comparison plan or overlay showing the difference
updated schedules for car parks, storage, common property, lot entitlement or lot liability
any explanation of council, authority or surveyor requirements behind the change.

Some notices are clear. Others say little more than 'please find attached amended plan'. If the comparison is not obvious, ask for the marked up plan straight away and send the notice to your conveyancer the same day.

Do not rely on the developer's summary alone. A change to one line on a plan can shift ownership rights, owners corporation liability or the usefulness of a car space.

How long do you have to respond to a section 9AC notice?

You need to act as though you have 14 calendar days from receiving the notice. That is a very short window for checking the contract plan, the amended plan, the owners corporation schedules and your rescission options.

There are two timing points to keep separate:

The vendor must notify you within 14 days after the plan is amended.
If the amendment materially affects your lot, you need to exercise the rescission right within 14 days after receiving the notice.

Buyers often lose time because they read the email, feel unsure, then leave it for the weekend. That is risky. Public holidays, travel and work do not make the comparison easier.

A practical response is:

Forward the notice and attachments to your conveyancer on the day it arrives.
Ask the vendor's solicitor for a comparison plan if one was not provided.
Compare the amended plan with the contract plan, not just the marketing brochure.
Check whether earlier amendments have a combined effect.
Decide whether to accept the amendment, ask questions, negotiate or rescind.
Make sure any rescission notice is in writing and served before the deadline.

Can a developer contract out of section 9AC?

No. A vendor cannot use a contract clause to remove or weaken your section 9AC rights. A clause may still appear in the contract, but it cannot override the Sale of Land Act.

This matters because many off the plan contracts include tolerance wording, such as a statement that area changes under 5% are not material. That wording may shape what the developer thinks is acceptable, but it does not decide the statutory question.

The real test is the effect on the lot. A 3% change in a corridor might matter less than a 3% change that makes the main bedroom tight, reduces natural light or changes your car parking rights.

What happens to your deposit if you rescind under section 9AC?

If you validly rescind under section 9AC, the contract ends and the deposit should be returned from trust, along with any interest that belongs to the purchaser. The exact process depends on where the deposit is held and what has happened since signing.

Most Victorian off the plan deposits are held in an estate agent's trust account or the vendor solicitor's trust account. That is one reason deposit release should be treated carefully.

If the vendor has asked you to consent to early deposit release under Section 27 of the Sale of Land Act, pause before agreeing. Once money has left trust, getting it back after rescission can become more complicated.

For first home buyers, keeping the deposit in trust is often the safer position, especially on a long build where plan amendments may arrive months or years after the contract date.

Why section 9AC is relevant to Melbourne buyers now

Melbourne off the plan projects often run for a long time between contract signing and plan registration. The longer that gap, the more room there is for council conditions, survey changes, service authority requirements and building design issues to affect the plan.

Apartments and townhouses also carry extra moving parts. Car parking, storage cages, common property, lot entitlement and lot liability all sit within the subdivision materials. A change that looks technical can affect daily life after settlement, from where you park to how much you pay in owners corporation fees.

Victorian building reform has also kept buyer protections in the spotlight. New rules around higher rise residential projects, building regulation and defect processes sit alongside, not inside, section 9AC. They do not replace your plan amendment rights.

The safest habit is simple: keep every version of the contract plan, every 9AC notice and every amended plan in one folder. When a new notice arrives, compare the full chain, not just the newest attachment.

Frequently asked questions

What is Section 9AC of the Sale of Land Act?

Section 9AC is a Victorian buyer protection in the Sale of Land Act 1962 for off the plan purchases. If the vendor amends the plan of subdivision before registration, they must notify the buyer within 14 days. If the amendment materially affects the lot, the buyer may have 14 days from notice to rescind the contract.

What does 'materially affect' mean under Section 9AC?

'Materially affect' means the amendment would matter to a reasonable buyer in the purchaser's position. It can include physical, financial or ownership changes, such as reduced apartment area, changed car parking rights, altered common property, reduced light or changed owners corporation entitlements. Several small changes can also matter when viewed together.

Can a contract clause say a 5% change is not material?

No. A contract cannot remove or narrow the buyer's section 9AC rights. Victorian case law has shown that even a change below 5% can materially affect a lot, especially where the effect falls on a key part of the property such as the main bedroom, car park or natural light.

How long do I have to rescind under Section 9AC?

Treat the deadline as 14 calendar days from the date you receive the section 9AC notice. Send the notice to your conveyancer immediately, because the comparison can take time and the rescission notice must be served in writing before the window closes.

What if the developer doesn't tell me about a change?

The vendor must give written notice within 14 days after an amendment to the plan of subdivision. If they do not notify you, they may be in breach of section 9AC. Your options depend on the facts, the timing, whether the plan has registered and whether the amendment materially affects your lot.

Does Section 9AC apply to apartments, townhouses and house and land contracts?

Yes, section 9AC can apply to any Victorian off the plan purchase where the relevant plan of subdivision is not registered when the contract is signed. That includes apartments, townhouses, vacant lots and some house and land arrangements tied to a future subdivision.

Will I get my deposit back if I rescind under Section 9AC?

If you validly rescind within the required time, your deposit should usually be returned from trust, with any interest that belongs to you. If you consented to early release of the deposit, recovery can be harder, so get advice before agreeing to any section 27 release on an off the plan purchase.

About the Pearson Chambers Conveyancing team

Pearson Chambers Conveyancing is a Melbourne focused conveyancing team helping first home buyers, sellers and investors with contract reviews, Section 32 checks, off the plan purchases and settlements across Victoria. We review contracts and plan documents daily for apartments, townhouses, units and new land releases, with a close eye on timing, deposits, owners corporation schedules and settlement risk. Section 9AC notices are exactly the kind of document our team checks when an off the plan buyer needs a clear answer quickly.

Sources we consulted

Need help with a section 9AC notice?

If a section 9AC notice has landed in your inbox, do not wait to see whether it 'feels' serious. Send the contract, the original plan, the amended plan and the notice to Pearson Chambers Conveyancing so we can help you understand the change before the 14 day window narrows.

We also offer a complimentary Section 32 contract review for Melbourne buyers before they sign.

Email: contact@pearsonchambers.com.au

General information only, current as at the date of publication. Victorian conveyancing rules and legislation change frequently. Please contact the Pearson Chambers Conveyancing team for advice on your specific contract.