The Legal Position When Only One Owner Wants to Borrow
A secured loan creates a legal charge over the whole property, not just the borrowing applicant's share. This means the lender's security encompasses the non-borrowing owner's interest too. For the lender to have valid security, all legal owners must have consented to the charge — either by being a co-applicant on the loan or by signing a deed of consent acknowledging the charge and its implications.
The non-borrowing owner is in a legally significant position. While they are not taking on the debt personally (in the sense of being liable for repayment in most deed-of-consent structures), their home is at risk if the borrowing party defaults. This asymmetry — one party enjoys the loan proceeds, both parties risk the security — is exactly why FCA guidance requires that the non-borrowing owner receives independent legal advice before signing any consent documentation.
Some lenders will simply refuse applications where one owner does not wish to be a co-applicant. Others specifically offer a deed of consent route that accommodates this structure, provided independent legal advice is obtained. Your broker's knowledge of each lender's policies is crucial in identifying who to approach without wasting hard credit searches.
FCA Guidance on Informed Consent
The FCA's Mortgage and Home Finance Conduct of Business sourcebook (MCOB) and its Consumer Duty rules require that all parties to a secured lending transaction are treated fairly and that their consent is fully informed. This is not a tick-box exercise — the guidance specifically contemplates scenarios where non-borrowing property owners might be under social or domestic pressure to sign documents they do not fully understand.
In practice, FCA-regulated lenders will require evidence that the non-borrowing owner has received independent legal advice from a solicitor who is not acting for the lender or the borrowing party. The solicitor must confirm in writing that they have explained the nature of the charge, the risks of default, and the fact that the non-borrowing owner's share of the property is being used as security for someone else's debt.
This requirement exists to protect non-borrowing owners from arrangements that are not in their interest, and it provides the lender with legal protection against future claims that the consent was obtained under duress or without full understanding. Attempting to shortcut this process will result in the lender refusing to proceed.