Mortgage

A Let to Buy mortgage is a specialist lending arrangement designed for homeowners who want to move to a new property while keeping their existing home as a rental investment. It sits between residential and investment lending, and it is typically assessed with more detailed affordability checks than standard mortgages. What is a Let to Buy mortgage? It is a process where an existing residential property is converted into a rental property by remortgaging it onto a buy-to-let basis, while simultaneously taking a new residential mortgage for the next home smartcitymortgages.co.uk/blog/let-to-buy...osts-and-risks-2026/ . This structure allows borrowers to release equity from the current home to support the purchase of a new residence. How does a Let to Buy mortgage work? In practice, the homeowner applies to remortgage their current property on a rental basis, supported by expected rental income, while applying for a separate residential mortgage on a new home. The timing of both applications is often coordinated to ensure smooth transition between properties. Lenders may assess both applications together to evaluate overall affordability and risk exposure. Who is Let to Buy suitable for? It is generally suitable for individuals who wish to move home but prefer not to sell their existing property. It can also be relevant for those seeking long-term rental income or potential capital growth from property ownership, while still upgrading their primary residence. Let to Buy vs Buy to Let: what’s the difference? Let to Buy vs Buy to Let: what’s the difference? The key distinction is intent and sequence. Let to Buy involves converting an existing home into a rental property while purchasing a new main residence. Buy to Let typically involves purchasing a property specifically for rental purposes from the outset. What are the lending criteria for Let to Buy mortgages What are the lending criteria for Let to Buy mortgages depends on lender policy, but commonly includes credit history checks, existing mortgage performance, and proof of stable income. Lenders also assess whether the property is suitable for rental demand and meets minimum valuation standards. How much equity or deposit do you need? How much equity or deposit do you need? Most lenders require sufficient equity in the existing property, often around 20–25% minimum, although higher equity can improve approval chances and interest rates. For the new residential mortgage, a standard deposit requirement applies depending on borrower profile and product type. How do lenders assess rental income? Lenders typically use a rental coverage calculation, where expected monthly rent must exceed a percentage of the mortgage payment, often around 125% to 145%. Independent rental valuations or letting agent estimates are commonly used to verify income assumptions. What are the disadvantages and risks of Let to Buy? What are the disadvantages and risks of Let to Buy? These include higher overall borrowing costs due to holding two mortgages, potential void periods where rental income is absent, and responsibility for property maintenance as a landlord. Market fluctuations can also impact property value and rental demand, affecting long-term financial stability.