Can a Property Sale Be Cancelled If the Seller Does Not Own the Property?

 

Written by Roy Bregman, admitted attorney with over 51 years' experience in property and conveyancing law. View Roy's profile.

Last updated: 15 July 2026

Key Takeaways •      A sale of land is valid only if it is in writing and signed by the true owner, or by someone with the owner's written authority. If it is not, the sale is void from the very beginning. •      You cannot sell what you do not own. A person who is not the registered owner cannot pass ownership, whatever the sale agreement says. •      A court order for transfer, obtained against the wrong person, does not bind the real owner and does not cure a void sale. The 2026 Hoosen judgment confirmed this. •      Before you pay anything, confirm the seller is the registered owner through a deeds office search, and let a conveyancer tie your payment to registration.

Yes, a property sale can be cancelled, and in many cases, it is void without a court even needing to cancel it, if the person who sold the property was not the true owner or did not sign as the law requires. In South Africa, land can only be sold in a specific way, and when those rules are not followed, the sale has no legal force at all.

This is not a mere technicality. In June 2026, the KwaZulu-Natal High Court set aside two Durban property sales because the seller did not own the properties. The real owner had never signed anything, and the buyers were left with nothing, even though one of them had already obtained a court order directing that the properties be transferred.

This article explains, what makes a property sale valid, what happens when a non-owner sells, what the courts have recently decided, and the practical steps that protect you as a buyer.

What does the law require for a valid property sale in South Africa?

The law requires that every sale of land be in writing and signed by the seller and the buyer, or by agents acting on their written authority. This rule appears in section 2(1) of the Alienation of Land Act 68 of 1981. The word alienation simply means the transfer or disposal of land, usually by a sale.

If a sale does not meet this requirement, it is void ab initio. That Latin phrase means void from the very beginning, as though the agreement never existed. No rights flow from it, and neither party can enforce it.

The writing requirement is strict. All of the material terms, meaning the important terms such as the parties, the property, and the price, must be captured in the signed document. A handshake, a WhatsApp message, or a verbal promise is not enough to sell a house.

Why must the true owner sign?

The true owner must sign because you cannot give someone more than you have. Our law captures this through an old principle, nemo plus iuris, which is shorthand for the idea that a person cannot transfer greater rights than they themselves hold. A seller who is not the owner holds no right of ownership to pass on.

So even a perfectly worded, signed agreement is worthless if the person signing as seller is not the registered owner and has no authority to act for the owner. The buyer receives a piece of paper, but no ownership.

What happens if someone sells a property they do not own?

If someone sells a property they do not own, the sale is void and ownership does not pass to the buyer. The true owner can approach a court to have the sale set aside and to stop any transfer going through at the deeds office. The buyer is usually left to claim back whatever money was paid, which can be very difficult if the seller has disappeared or spent it.

The table below sets out the common scenarios and their effect.

Scenario	Is the sale valid?	What the buyer can recover
Sale in writing, signed by the registered owner	Valid and enforceable	Full ownership once transfer is registered
Sale signed by an agent with the owner's written authority	Valid and enforceable	Full ownership once transfer is registered
Sale by a person who is not the owner and has no authority	Void from the start	Only a money claim to recover what was paid
Sale with a forged owner's signature	Void from the start	A money claim, plus possible criminal charges against the fraudster
Verbal or informal sale, not properly signed	Void from the start	Only a money claim to recover what was paid

 

Notice the pattern. When the sale is void, the buyer never gets the property. At best, the buyer has a claim for money back, and that claim is only as good as the seller's ability to pay.

What did the court decide in the 2026 Hoosen case?

In MEC for Human Settlements KZN v Hoosen and Others (2026), the court set aside two property sales because the seller was not the owner, and it stopped the deeds office from registering transfer. The properties in Durban were registered in the name of the provincial housing department. A close corporation that did not own the properties sold them to two buyers in 2017.

The buyers had gone further than most. They obtained a default judgment, meaning a judgment granted because the other side did not defend the case, ordering the seller to transfer the properties. The problem was that the true owner, the department, was never a party to that earlier case and knew nothing about it.

When the department found out, it asked the High Court to set the sales aside. The court agreed. It held that the sales did not comply with section 2(1), because the owner had not signed, so they were void. The court also rejected the buyers' arguments that the earlier judgment had settled the matter. Those arguments relied on res judicata, which means a matter that has already been finally decided, and on estoppel, which prevents a person from going back on an earlier position. Both failed, because the true owner had never been part of the earlier case and so could not be bound by it.

The buyers' counterclaim, which asked the court to force the department to sign the transfer, was dismissed. There was simply no legal basis to make an owner sign away property it had never agreed to sell.

The Supreme Court's rule in Cooper v Curro Heights

The Supreme Court of Appeal confirmed in 2023 that non-compliance with section 2(1) makes a land sale void from the start, and that such a sale cannot create any right to sue. In Cooper NO and Another v Curro Heights Properties (Pty) Ltd, the court dealt with a sale where an important term had not been properly reduced to writing and signed. The result was that the whole agreement was null and void.

The lesson from the Supreme Court is clear. The written and signed requirement is not a formality to be smoothed over later. If it is missing, there is no sale.

Why registration is not a guarantee: Legator McKenna

Registration in the deeds office does not automatically prove that a sale was valid. In the leading case of Legator McKenna Inc v Shea, the Supreme Court of Appeal explained how ownership passes under what lawyers call the abstract theory of transfer. In plain terms, ownership passes when the property is registered and when both sides genuinely intend ownership to change hands under a valid arrangement.

The practical point for buyers is this. Registration is powerful, but it is not magic. Where there is a real defect, ownership may not pass despite the entry in the deeds office, and a court can step in to put things right.

How can you protect yourself when buying property?

The best protection is to confirm ownership and follow the correct process before you part with any money. The steps below reduce your risk considerably.

First, obtain a deeds office search on the property. This confirms who the registered owner is, and whether a bank or anyone else has a bond or other interest registered against it.

Second, match the seller to the owner. Compare the seller's identity document to the name of the registered owner on the title deed. If they do not match exactly, stop and ask why.

Third, check authority where someone signs for the owner. If an agent, a company representative, an executor, or a curator signs, insist on seeing the written authority, such as a power of attorney, a company resolution, or letters of executorship.

Fourth, put everything in writing. Make sure the signed agreement records all of the material terms, including the parties, the full property description, the price, and the conditions of sale.

Fifth, use a conveyancer and tie payment to registration. A conveyancer is an attorney who specialises in transferring property. Structure the deal so that the purchase price is only released once transfer is safely registered in your name.

Sixth, watch for red flags. A price that is well below market value, pressure to pay quickly, a seller who is not named on the papers, or a bank still recorded as titleholder are all warning signs that deserve a closer look.

The bottom line

A property sale can be cancelled, and is often void from the outset, where the seller is not the true owner or the owner has not signed as the law requires. The 2026 Hoosen judgment is a sharp reminder that even a court order for transfer will not save a buyer if it was obtained against the wrong person. The Supreme Court in Cooper v Curro Heights made the same point about the written and signed requirement.

The good news is that these losses are avoidable. A deeds office search, a careful check of identity and authority, a properly drafted agreement, and payment tied to registration will protect you. When large sums and your family home are at stake, a few hours of an attorney's time is a small price for peace of mind.

Frequently asked questions

Can a property sale be cancelled if the seller does not own the property?

Yes. If the seller is not the registered owner and has no written authority to act for the owner, the sale is void from the start. Ownership cannot pass, a court can set the sale aside, and the buyer is usually left with only a claim to recover the money that was paid.

Is a verbal agreement to sell a house valid in South Africa?

No. Section 2(1) of the Alienation of Land Act requires every sale of land to be in writing and signed by the parties or their authorised agents. A verbal deal, a handshake, or a text message cannot validly sell property, and any such agreement has no legal force whatsoever.

What does void ab initio mean for a property buyer?

Void ab initio means void from the very beginning, as if the agreement never existed. For a buyer, no rights arise from the sale, no ownership passes, and the agreement cannot be enforced. The buyer's remedy is generally limited to reclaiming the money that was paid to the seller.

Does a court order for transfer protect me if the seller was not the owner?

Not necessarily. If the order was obtained against someone who was not the true owner, and the real owner took no part in that case, the order does not bind the owner. As the 2026 Hoosen judgment showed, such an order can be ignored and the underlying sale can still be set aside.

How do I check who really owns a property before I buy?

Ask a conveyancer to run a deeds office search. It confirms the registered owner, the property description, and any bonds or interests registered against it. Then compare the owner's details to the seller's identity document before you sign anything or pay any money.

Speak to us before you sign or pay

Buying property is one of the largest financial decisions most people ever make, and a single missed check can cost you everything you pay. At Bregman Moodley Attorneys, we help buyers and sellers confirm ownership, draft watertight sale agreements, and structure payment so that your money is safe until transfer is registered.

Get in touch before you commit. Call us on +27 (0)11 646 0335, email roy@bmalaw.co.za, or visit bregmans.co.za. We will take the sting out of your property transaction.