Bridge-to-let: a bridging loan with a buy-to-let exit
Bridge-to-let means buying or refinancing a rental property with a bridging loan now, with a buy-to-let mortgage planned from the start as the way to repay it. It suits landlords whose property cannot get a buy-to-let mortgage yet because of its condition, a deadline or the lack of a tenancy. It only works if the finished property and its rent will pass a buy-to-let lender's tests, so check the exit before you commit.
- Two stages
- A short-term bridging loan first, then a buy-to-let mortgage that repays it.
- One lender or two
- Some lenders link both stages in one product; otherwise the two loans are arranged separately.
- Exit tested first
- The planned mortgage must pass the buy-to-let lender's valuation and rental cover test.
- Two sets of costs
- Fees, valuations and legal work arise on the bridge and again on the mortgage.
On this page
- What bridge-to-let means
- When bridge-to-let is used
- How the two stages work and what each lender checks
- Why the exit must be tested on day one
- What can stop the refinance
- Limited company and HMO variants
- Is bridge-to-let regulated?
- Costs across both stages
- Bridge-to-let compared with the alternatives
- Risks to weigh up
- What to have ready before you enquire
What bridge-to-let means
Bridge-to-let is a way of financing a rental property in two stages. A bridging loan funds the purchase now, and a buy-to-let mortgage repays that loan once the property qualifies for one. The mortgage is the planned exit from the start.
It is arranged in one of two ways. Some lenders offer both stages as a linked product and assess the mortgage in outline when they agree the bridge. Otherwise you take a bridging loan from one lender and apply to another for the mortgage later. Either way, the second stage depends on the valuation, the rent and the lender's criteria at the time.
When bridge-to-let is used
It is used when a property is worth buying but would not pass a mortgage lender's checks today, because:
- it is not in mortgageable condition, for example it has no working kitchen or bathroom
- it was bought at auction and must complete by a fixed date (see auction bridging loans)
- it needs works before it can be let (see refurbishment bridging loans)
- it is empty, or let on terms a mortgage lender will not accept, and needs a new tenancy
It suits landlords who have checked that the finished property and its rent will support the mortgage they need. It does not suit a property that already qualifies for a buy-to-let mortgage, or a plan that relies on the value rising.
How the two stages work and what each lender checks
- Test the exit. Before you commit, estimate the finished value and rent and check them against mortgage criteria.
- Arrange the bridge. The bridging lender looks at the property as it stands, the price, your deposit and whether the exit is realistic. Its loan and your deposit fund the purchase.
- Make it lettable. Carry out any works, obtain any licence and certificates needed, and find a tenant.
- Apply for the mortgage. The mortgage lender looks at the finished property, the rent and you: your credit history, income, letting experience and other mortgaged properties.
- Refinance. The mortgage repays the bridge with the interest and fees due. If it is smaller than the amount owed, you pay the difference.
Why the exit must be tested on day one
The bridge is only as safe as the mortgage that will repay it, and a buy-to-let mortgage is sized mainly by the rent. Lenders apply an interest cover ratio: the rent must exceed the mortgage interest, worked out at a stressed rate, by a set margin.
The Prudential Regulation Authority's underwriting standards for buy-to-let lending (SS13/16, September 2016) record 125% as the industry-standard minimum ratio. The PRA expects the lenders it supervises to allow for a rise of at least 2 percentage points in mortgage rates, with a minimum assumed rate of 5.5%, unless the rate is fixed or capped for five years or more. These are expectations of lenders, not rules for borrowers, and each lender sets its own figures, which can be higher. An updated statement takes effect on 1 January 2027: the Bank of England's page shows the version in force.
Illustration only, using those reference figures. At 5.5% and 125% cover, a £150,000 interest-only mortgage needs rent of about £860 a month. Rent of £800 supports a loan of about £139,600. If you owe more than that on the bridge, you must find the difference. Test your own figures with the buy-to-let mortgage calculator.
What can stop the refinance
- The valuation comes in low. The mortgage is a share of the lender's valuation, not your estimate.
- The rent does not cover. The cover test caps the loan below what you need.
- Works are unfinished. The valuer finds a property that is not ready to let.
- A minimum ownership period. Some lenders set a minimum period of ownership before they will remortgage, or lend only against the purchase price until it has passed.
- Licensing is not in place. An HMO without the licence or planning consent it needs is unlikely to be accepted.
- The property cannot legally be let. In England and Wales, a rented home covered by the minimum energy efficiency rules needs an EPC rating of E or better unless an exemption is registered (since 1 April 2020). A standard equivalent to EPC C is confirmed policy for 1 October 2030 but not yet law: check GOV.UK's landlord guidance.
- Your position changes. Your credit and income are checked again when you apply for the mortgage.
Limited company and HMO variants
Limited company. If you buy through a company, keep the same owner for both stages, because moving a property into a company later can create tax and legal costs. Lenders assess the directors as well as the company and may ask for personal guarantees. See limited company buy-to-let.
HMO. Where the bridge funds a conversion to a house in multiple occupation, the exit is an HMO mortgage. In England, an HMO let to five or more people from more than one household must be licensed, and councils can require licences for smaller ones. Lenders also value HMOs in different ways, which affects how much you can refinance.
Is bridge-to-let regulated?
It depends on the borrower and the use of the property when each loan is taken out. Under FCA guidance, a loan to a company for its business is not a regulated mortgage contract. A loan to an individual who buys to let, wholly or mainly for business purposes, with no plan for them or a close relative to live there, usually falls within an exclusion. A home that you or a close relative live in, or will live in, is normally regulated. Anything in between must be checked case by case by a firm with the right permissions, and you can check any firm on the FCA Register.
Costs across both stages
Two loans mean two sets of costs.
| Stage | Costs to expect |
|---|---|
| Bridging loan | Interest (paid monthly, retained or rolled up), arrangement fee, valuation fee, legal fees for both sides, any exit fee, any broker fee |
| Buy-to-let mortgage | Product or arrangement fee, a second valuation, legal fees for the refinance, any broker fee, then monthly mortgage payments |
| The purchase | Deposit, Stamp Duty Land Tax, works, insurance and the running costs of an empty property |
With a linked product, ask which costs are shared between the stages. The bridging loan calculator shows interest, fees and the net advance for stage one. The figures that count are in each lender's offer.
Bridge-to-let compared with the alternatives
| What differs | Bridge-to-let | Straight buy-to-let mortgage | Refurbishment bridging |
|---|---|---|---|
| Fits when | A rental property cannot be mortgaged yet | The property is lettable and mortgageable now | A property needs works, to keep or to sell |
| Repaid by | A buy-to-let mortgage, planned from the start | Monthly payments, then sale or refinance | Sale or refinance |
| Set-up costs | Two sets | One set | One set, plus the works |
| Main risk | The refinance falls short or is declined | Rent or interest rates move against you | Works overrun or the end value disappoints |
The two bridging routes overlap: a refurbishment bridge repaid by a buy-to-let mortgage is a bridge-to-let.
Risks to weigh up
The risk is that the mortgage is smaller or later than planned, or not offered at all, while interest on the bridge keeps running. If the bridge reaches the end of its term unpaid, extra charges can apply. The loan is secured on the property: if it is not repaid, the lender can take possession and sell it, and directors who gave personal guarantees can be liable too. Test the exit on cautious figures, choose a term with headroom and keep a second exit open, such as a sale.
What to have ready before you enquire
- The address, price and condition, and why the property cannot be mortgaged yet.
- Your deposit and where it comes from.
- Any works: schedule, costs and timetable.
- The value and monthly rent you expect once it is ready, with comparable evidence.
- Who will own it: you or a company, with company and director details.
- Your income, and your other properties and mortgages.
- For an HMO, the planning and licensing position.