The situation
An entrepreneur wants to purchase a £5m UK home with £2m of personal funds towards the price and a separate costs budget. Much of their wider wealth sits in company shares and family investment structures. A possible business sale is being discussed, but no binding transaction exists.
What makes this more involved?
A valuation of a private business does not demonstrate either monthly affordability or cash that can be accessed to repay a mortgage. Family or trust assets may belong to someone else, carry restrictions or require consent. A hoped-for exit has timing, value and completion risks.
How I would approach it
Map ownership and access
Set out the proposed borrower, property owner, deposit source and who legally controls each relevant asset. Work with appointed legal, tax and wealth advisers to understand restrictions without treating every family asset as personally available.
Establish servicing and repayment
Separate evidenced recurring income from discretionary distributions and a potential business sale. If interest-only is considered, examine both the proposed repayment strategy and what happens if the exit is delayed or fails.
Compare the full relationship
Where a suitable specialist or private-bank route is available, compare the entire proposition: mortgage costs, any asset-transfer requirements, investment fees, security and release terms. The lowest headline mortgage rate may not mean the lowest overall cost.
What could change the plan?
What if the business sale does not happen?
An anticipated sale is not a cash balance. The application may need a different repayment strategy, lower borrowing or a later purchase. Delaying the sale cannot simply be assumed to extend the mortgage.
Must investments move to the lender?
Some private-bank propositions involve a wider banking or investment relationship; others differ. Any proposed transfer needs a separate review of eligibility, fees, investment consequences and access to funds.
What this would establish
Produce a clear account of who borrows, how payments are met and how capital could be repaid under an acceptable structure. Significant wealth alone does not establish mortgage eligibility.
Does substantial net worth replace the need to show affordability?
No automatic assumption should be made. The lending assessment depends on the product, borrower and applicable requirements. Wealth, accessible funds, servicing and capital repayment need to be explained separately.
Link to this answerEducational content updated 24 September 2026. General information; individual advice requires an assessment. Lender criteria can change.
Further reading: Barclays: residential lending criteria. These references explain general criteria and do not indicate lender acceptance of this example.