Who Has the Right to Your Property?

Most Australians assume that buying a property settles the question of ownership. But under Australian property law, multiple parties can hold competing claims over the same piece of land, and the law has a detailed set of rules to decide who wins.

Whether you are purchasing property, lending money secured against land, going through a separation, or investing in commercial real estate, understanding the hierarchy of property interests could be the difference between protecting your position and losing it entirely.

The Four Types of Interests in Land

Australian property law recognises a hierarchy of interests. Not all interests are equal, and where yours sits in that hierarchy determines how well protected you are.

1. Legal Interest in Land

A legal interest is the strongest form of interest you can hold. It is enforceable against the entire world, without exception.

Under the Transfer of Land Act 1958 (Vic), a legal interest in Torrens title land is created when that interest is registered on the title. Under the Property Law Act 1958 (Vic), a legal interest in old system land is created by deed.

Common examples include a registered mortgage held by a bank, a registered easement, or a right of way. These interests run with the land, meaning they remain attached even when ownership changes. If you purchase a property that is subject to a registered mortgage, you are buying it subject to that mortgage, whether you knew about it or not.

2. Equitable Interest in Land

An equitable interest arises where formal legal requirements have not been met, for example where an interest has not been registered or is incapable of registration.

Equitable interests are still powerful. They are enforceable against the whole world except a bona fide purchaser of a legal interest for value without notice. This exception is critical and we return to it below.

Equitable interests can arise expressly, for example under a contract for the sale of land before settlement, or they can be imposed by a court, such as through a constructive trust arising from shared financial contributions to a property.

3. Mere Equity

A mere equity sits below an equitable interest in the hierarchy. It is not itself an interest in property. Rather, it is a right to bring a legal action which, if successful, will create an equitable interest.

Examples include the right to have a fraudulent sale set aside, or the equity of rectification, which is a right to correct a document that does not accurately reflect what the parties agreed.

4. Personal Equity

A personal equity is the weakest form of interest. It is a right enforceable only between specific parties and cannot attach to the land itself. If you succeed on a personal equity claim, your remedy is damages, not an interest in the property.

Why This Matters: Priority Disputes

A priority dispute arises when two or more parties hold competing interests over the same land. The law must then determine whose interest takes precedence.

These disputes are more common than most people realise. They arise in mortgage defaults, family breakdowns, fraudulent transactions, and commercial insolvencies. Here is how Australian courts resolve them.

Legal Interest vs Legal Interest

Where two legal interests conflict, the first in time prevails. This flows from the fundamental principle that you cannot convey an interest you do not have.

Prior Legal Interest vs Later Equitable Interest

As a general rule, the prior legal interest wins. The legal interest holder will take priority provided they did not contribute to the creation of the subsequent equitable interest, for example through fraud, gross negligence, or by allowing another party to appear to be the true owner of the property.

Mere carelessness is not enough to defeat a prior legal interest, as established in Northern Counties of England Fire Insurance Co v Whipp (1884). However, if a legal interest holder actively arms someone with the ability to deceive a third party, they may be prevented from asserting priority.

Prior Equitable Interest vs Later Legal Interest

This is where things become particularly important for property buyers, lenders, and investors.

If a subsequent purchaser acquires a legal interest in land, for example by registering a mortgage or transfer, they will take priority over an earlier equitable interest holder, but only if they are a bona fide purchaser for value without notice. This rule was established in Pilcher v Rawlins (1872) and remains good law in Australia today.

The three requirements are as follows. First, the purchaser must have acted in good faith with no unconscionable conduct. Second, the purchaser must have paid genuine consideration, as volunteers who receive property as a gift are not protected. Third, the purchaser must have had no actual, constructive, or imputed notice of the prior equitable interest at the time they acquired their interest.

Notice is the battleground in most of these disputes. Actual notice means you were told about the prior interest. Constructive notice means you would have discovered it had you carried out all reasonable inspections and enquiries. In Kingsnorth Finance Ltd v Tizard [1986], a mortgagee who arranged a property inspection at a time organised by the borrower and who failed to notice signs of a spouse in occupation was found to have taken the mortgage with constructive notice of the wife's equitable interest. The bank lost priority as a result.

Equitable Interest vs Equitable Interest

Where two equitable interests compete, the court conducts a merit analysis before falling back on priority in time. As stated in Rice v Rice (1854), if both interests are equal in merit, the earlier interest prevails.

The merit analysis is broad and flexible. Courts consider whether the prior interest holder took steps to protect their interest, for example by retaining title documents or lodging a caveat. They consider whether either party armed a fraudster with the appearance of good title. They look at the overall conduct of the parties and ask who behaved more responsibly. This is not a rigid checklist. It is a holistic assessment, and the outcome can turn on subtle factual differences.

The Role of Caveats

A caveat is a formal notice lodged against a certificate of title under section 89 of the Transfer of Land Act 1958 (Vic). It warns the world that a person claims an interest in the land and prevents the registration of any inconsistent dealing.

Failing to lodge a caveat when you hold an unregistered interest can be fatal to your position. In Black v Garnock (2007) 230 CLR 438, the High Court held that a failure to caveat, when the interest holder was aware of their interest and capable of protecting it, constituted postponing conduct. The prior interest lost priority as a result.

That said, failure to caveat is not automatically fatal. The courts consider it as one factor among many. If it was reasonable in the circumstances not to lodge a caveat, for example because the party was unaware they held a caveatable interest or because usual conveyancing practice did not require it at the time, the failure may not constitute postponing conduct.

What This Means for You

If you are buying property

Conduct thorough due diligence before exchanging contracts. Inspect the property physically. Search the title. Ask questions if the circumstances suggest another person may be in occupation or hold an unregistered interest.

If you are a lender

Understand that a registered mortgage is your strongest protection. Unregistered lending arrangements create equitable interests only, and those interests can be defeated.

If you hold an unregistered interest

Lodge a caveat immediately. Do not assume your interest is protected simply because you have a signed agreement or have contributed money to a property.

Speak to a Property Lawyer

Priority disputes in property law are fact-specific, technical, and often time-critical. The hierarchy of interests and the rules that govern them have been developed over centuries of case law, and the outcome of a dispute can turn on a single step that was or was not taken at the right time.

If you have questions about your interest in a property, registered or unregistered, the team at CMH Lawyers can advise you on where you stand and how to protect your position.