Let to Buy Mortgage
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Let to Buy Mortgages Require Coordinated Structuring From the Outset
A let-to-buy mortgage must be structured correctly at the start to avoid delays, onward purchase disruption, affordability shortfalls, or declined applications. This includes coordinating the background residential mortgage (being converted to buy-to-let), projected rental income, the onward residential purchase, and lender sequencing. Let to buy is not a standard re-mortgage or buy-to-let; it is a linked transaction requiring deliberate lender alignment.
Strategic Sequencing of Simultaneous Transactions
Let-to-buy cases often involve two mortgages completing in close proximity: converting the existing home to a buy-to-let and arranging a new residential mortgage. Correct sequencing is critical. Applications must be structured so deposit release, rental calculations, and onward affordability align, ensuring neither mortgage jeopardises the other.
Expert Handling of Rental Stress Testing, Background Treatment, and Equity Release
Let-to-buy lenders vary in how they assess the existing property, either as a background buy-to-let or within an integrated transaction. Stress rates, ICR calculations, and tax assumptions directly impact loan size and residential affordability. Where equity is raised for a deposit, loan-to-value and rental cover must be aligned to avoid over-leveraging. Correct lender selection ensures the structure remains viable across both mortgages.
Let to Buy Mortgage Rates - Purchase (New Home) September 2026
| LTV | 75% LTV |
| Product Fee | £999 Flat Product Fee |
| Rate | 3.85% |
| Fixed Term | 5 years |
Let to Buy Mortgage Rates - Purchase (New Home) September 2026
| LTV | 75% LTV |
| Product Fee | £999 Flat Product Fee |
| Rate | 3.85% |
| Fixed Term | 5 years |
PROCESS BREAKDOWN
Let to Buy mortgage criteria
Specialist Let to Buy Mortgages
Where the retained property in a let to buy is intended for a specialist rental model or corporate structuring, the re-mortgage must be aligned from outset. We structure re-mortgages to accommodate:
HMO (subject to planning and licensing)
Where multi-occupancy is intended, lender policy must permit HMO use and align with planning position, Article 4 direction, and licensing requirements.
Corporate lets
For company or employer-backed tenancy agreements, we select lenders that accept non-standard AST structures and corporate lease arrangements.
Social housing or supported accommodation
Where leasing to a housing association, local authority, or supported housing provider, lender criteria must allow institutional or long-term lease structures rather than standard private ASTs.
Airbnb and serviced accommodation
Short-term or Airbnb-style letting requires lenders that explicitly permit serviced accommodation, as many mainstream lenders prohibit nightly or rolling occupancy models.
Holiday lets
Where the property will operate as a furnished holiday let, we source lenders underwriting against projected occupancy and seasonal income rather than conventional AST stress testing.
Incorporation into a limited company
Where borrowers wish to transfer the property into a limited company as part of their investment strategy, we advise on limited company buy-to-let remortgage options, lender SPV requirements, and transaction structuring. Tax advice should always be taken separately, but financing must be aligned before incorporation proceeds.
FREQUENTLY ASKED QUESTIONS AND ANSWERS ON LET TO BUY MORTGAGES
A let to buy mortgage works by remortgaging your current home onto a buy to let product, usually releasing equity for a deposit, while simultaneously arranging a new residential mortgage for your next home. The existing property must meet rental stress tests, and both mortgages are underwritten separately.
Get in touchYes, you can get a let to buy mortgage if your existing property meets buy to let rental stress tests and you qualify for a new residential mortgage on your onward purchase. Lenders assess rental income, loan-to-value, credit history, and residential affordability separately.
Get in touchTo get a let to buy mortgage, you must remortgage your current home onto a buy to let product and apply simultaneously for a new residential mortgage. Lenders require a satisfactory rental valuation, appropriate loan-to-value, and full affordability assessment for the new home.
Get in touchLet to buy mortgages are offered by selected UK buy to let and residential mortgage lenders. Not all lenders permit this structure, as it requires simultaneous underwriting of a buy to let remortgage and a new residential purchase.
Get in touchA let to buy mortgage is a financing arrangement allowing a homeowner to retain their current property as a rental investment while purchasing a new main residence. The existing property is placed on a buy to let mortgage, and rental income must meet lender affordability and stress rate requirements.
Get in touchLet to buy mortgages work by remortgaging your current home onto a buy to let basis and using released equity as a deposit for a new residential purchase. The existing property must meet rental stress testing, and both mortgages are underwritten independently.
Get in touchA let to buy mortgage in the UK is a dual-transaction structure where a homeowner converts their current residence to a buy to let mortgage and purchases a new main home with a residential mortgage. Rental income must satisfy UK lender stress rate requirements.
Get in touchLet to buy mortgages are arrangements that allow homeowners to retain their current property as a rental investment while buying a new home to live in. The existing property is placed on a buy to let mortgage, subject to rental stress testing.
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