Mortgages — creation and priorities

A mortgage is not merely a contractual loan arrangement. In land law it is a proprietary security right: the borrower’s land is made available as security for repayment of a debt or performance of an obligation. That proprietary character explains both the mortgagee’s strength and the doctrinal difficulty. A purely personal creditor must sue, obtain judgment, and enforce against assets. A mortgagee already has an interest in the land. It can, subject to statute and equity, invoke proprietary remedies, rank against later interests, and transmit the security to assignees.

For Durham Year 2 Land Law, mortgages bring together the themes of the preceding weeks. Week 1’s distinction between estates and interests matters because a mortgage is not an estate in registered land by demise, but normally a charge by way of legal mortgage. Week 2’s registered-title machinery matters because, in registered land, legal status depends on completion by registration. Week 3’s priority rules matter because the mortgagee’s commercial objective is not merely to obtain a promise, but to obtain a right that defeats later and, in some circumstances, earlier interests. Weeks 4 and 6 are central because a spouse, co-owner or occupier may assert a beneficial interest under a trust, sometimes coupled with actual occupation. Week 10’s proprietary estoppel may also appear where a borrower has informally promised rights to another before charging the land.

The analytical sequence is therefore strict. First ask: has a mortgage or charge been created at all? Secondly, is it legal or equitable? Thirdly, if the land is registered, has the relevant disposition been completed by registration? Fourthly, what priority does the charge have against existing and later interests? Fifthly, are there special doctrines, such as overreaching, actual occupation, undue influence, subrogation, postponement or further advances, which alter the ordinary answer?

The modern registered-title system aspires to make priority visible on the register. Yet mortgages are the context in which the aspiration is most frequently compromised. The bank often funds an acquisition at the same moment as the purchaser acquires title; a spouse may have contributed to the purchase but not appear on the register; a later lender may search the register but face an occupier; and a defective legal charge may survive in equity. The best answers in a Durham examination do not recite the law of mortgages in isolation. They show how the law of security is embedded in the architecture of registered land: formality rules create interests, registration perfects legal title, and priority rules allocate losses between lenders, owners, occupiers and purchasers.

The history of mortgages explains much of the modern law’s vocabulary. At common law, a mortgage of land was originally a conveyance of the borrower’s estate to the lender, subject to a condition that the estate would revest when the debt was repaid on the contractual date. If repayment was not made on that date, the legal estate became the lender’s absolutely. Equity intervened because this was too harsh. The borrower was treated as retaining an equitable right to redeem the land even after the contractual redemption date. This became the equity of redemption, and it remains the organising idea of mortgage law. A mortgage is security, not a disguised sale. The lender may protect repayment, but it may not clog, fetter or destroy the borrower’s right to redeem.

The older distinction between law and equity also explains why mortgage doctrine historically separated legal mortgages, equitable mortgages, puisne mortgages, tacking and notice. Before universal registration, priority often depended on dates, legal estate, notice and equitable maxims. A lender who obtained the legal estate without notice could be in a stronger position than an earlier equitable claimant. This is why older cases still appear in modern accounts, though the registered land statutes have displaced much of their practical operation.

The Law of Property Act 1925 simplified conveyancing by reducing the permissible legal estates and interests and by making the charge by deed expressed to be by way of legal mortgage the standard legal mortgage. In unregistered land, a mortgage could still be created by demise or sub-demise. In registered land, however, the Land Registration Act 2002 is decisive: the registered proprietor’s owner’s powers exclude a mortgage by demise or sub-demise and include the power to charge the estate at law with payment of money. The legal mortgage of registered land is therefore a registered charge, not a transfer of the estate.

Equity nevertheless remains indispensable. A failed attempt to create a legal charge may take effect as an equitable charge if the requirements for an enforceable contract to grant a charge are satisfied. A specifically enforceable contract may create an equitable interest. A mortgage may also be vulnerable to equitable doctrines such as undue influence, misrepresentation, unconscionable dealing or subrogation. The modern law is not an abandonment of equity, but a reallocation of functions. Formality and registration rules decide whether the lender has a legal charge binding third parties through the register; equity supplies remedial and priority doctrines when those formalities are incomplete or when enforcement would be unconscionable.

Historically, the most important political and social development has been the rise of residential mortgage lending. The house is at once a family home, an investment asset, and security for institutional credit. This generates the recurring conflict between banks and occupiers. The House of Lords in Boland recognised that a spouse’s beneficial interest coupled with actual occupation could bind a bank. Cann then limited that principle in purchase-money cases by denying any temporal gap in which the purchaser could acquire an equitable interest before the bank’s charge. Etridge later addressed the different but related problem of whether a spouse’s consent to mortgage the home for another’s debts was properly obtained. The law of mortgages is therefore not only about commercial priority; it is also a law of domestic vulnerability, institutional lending practice, and the limits of registration as a complete mirror of title.

1. A mortgage is a proprietary security right. Its function is collateral, not dispositive. The mortgagee’s interest secures a debt or other obligation; the mortgagor retains ownership subject to that security. The debt and the security should be kept analytically distinct. The personal covenant to repay may exist without effective security, and an effective charge may secure obligations owed under separate contractual documents.

1. In registered land, a legal mortgage is normally a registered charge. The registered proprietor may charge the registered estate at law with payment of money, but may not mortgage by demise or sub-demise. The grant of a legal charge is a registrable disposition. Until the relevant registration requirements are met, it does not operate at law. This is the first major examination point. Execution of a mortgage deed is not enough for legal status in registered land; registration completes the transaction.

1. Formalities must be separated. A legal charge requires a deed. Under the Law of Property (Miscellaneous Provisions) Act 1989, a deed must make clear on its face that it is intended to be a deed, must be validly executed as a deed, and must be delivered as a deed. If there is no deed, there can be no legal charge. But there may still be an equitable mortgage or charge if there is a valid written contract to grant the security, satisfying section 2 of the 1989 Act, or if another recognised equitable basis exists.

1. An equitable mortgage is not a second-class contractual right. It is proprietary. It may bind third parties if protected or if it falls within a priority rule. But it is more vulnerable than a registered legal charge. In registered land it should normally be protected by entry of a notice. If not protected, it may be postponed to a later registrable disposition for valuable consideration completed by registration, unless it qualifies as an overriding interest or otherwise has protected priority.

1. Deposit of title deeds is no longer a simple route to equitable security. Under older equity, deposit of title deeds could evidence an intention to create a mortgage. After the Law of Property (Miscellaneous Provisions) Act 1989, the Court of Appeal in United Bank of Kuwait v Sahib held that an informal deposit of title deeds was ineffective to create an equitable mortgage where the statutory requirements for contracts concerning land were not satisfied. The lesson is not that equitable mortgages are extinct, but that equity will not evade mandatory formality rules.

The cases fall into five clusters. First, Santley v Wilde supplies the classical understanding that a mortgage is security for an obligation, not an outright alienation. Its continuing value is conceptual. Modern registered land no longer uses the old conveyance model for legal mortgages, but the equity of redemption and the security character of the transaction remain fundamental.

Secondly, United Bank of Kuwait v Sahib marks the post-1989 discipline of formality. Informal commercial behaviour cannot be converted into an equitable mortgage merely because the parties intended security. The case is especially important for problem questions containing deposited documents, letters, heads of terms, or oral assurances. The answer must test the statutory writing requirements rather than invoke a broad equitable intention.

Thirdly, Boland and Flegg illustrate the two great limits on the lender’s register-based confidence. In Boland, the wife’s beneficial interest under a trust, reinforced by actual occupation, bound the bank. The register did not disclose her interest, but Schedule 3’s predecessor protected it. In Flegg, by contrast, the beneficiaries’ interests were overreached when capital money was paid to two trustees. Actual occupation could not preserve an interest that had been shifted from the land into the proceeds. These cases must be read together. Boland is not a general charter for occupiers; Flegg is not a general victory for banks. The decisive difference is overreaching.

Fourthly, Abbey National v Cann limits the priority of occupiers in purchase-money mortgage cases. Where the bank’s advance enables the acquisition, the purchase and mortgage form one transaction. The purchaser never holds an unencumbered estate to which an occupier’s derivative beneficial interest can attach in priority to the bank. Cann is often the turning point in problem questions involving a contributor who moves in at completion.

Fifthly, O’Brien and Etridge address vulnerable sureties. They are not priority cases in the narrow section 29 sense, but they are indispensable to mortgage enforceability. If a wife or partner charges the home to secure another’s business debts, and the bank is put on inquiry, the bank must take steps to ensure that consent is properly obtained. The modern Etridge protocol channels equity into institutional lending practice: independent advice, direct communication, and proper explanation. A technically valid and registered charge may still be set aside or unenforceable against the surety if those requirements are not met.

Scott v Southern Pacific Mortgages completes the picture by reaffirming the priority of the acquisition lender in a sale-and-leaseback context. It prevents informal pre-completion personal arrangements from defeating the purchase-money mortgagee where the buyer could not grant a proprietary lease before acquiring the estate. The case demonstrates the Supreme Court’s continuing commitment to Cann’s transactional analysis.

See practice questions section below.

See further reading section below.