Bridging finance for UK property purchase: a practical guide

Bridging finance has a misleading reputation. Owners often see headline rates of 0.8 per cent a month and reach for a calculator that converts that into an annual cost. Done properly, bridging is one of the most useful tools in UK property finance because it is fast, flexible and works on assets where a high-street mortgage will not lend. Done badly, the rolled-up interest and exit fees can be punishing. This guide sets out when bridging is the right shape, what to look for, and which UK lenders to consider.

What bridging is and is not

A bridging loan is short-term property finance — usually 3 to 18 months — secured against a property the borrower owns or is purchasing. It is not a substitute for a long-term mortgage. The term is fixed and the lender expects to be repaid in full at the end. Interest is typically charged monthly and is either serviced (paid monthly) or rolled up (added to the loan balance and settled at exit).

When bridging is the right tool

• Buying at auction with 28-day completion required. High-street mortgage timelines do not fit; bridging can complete in 7 to 14 days.
• Buying a property that is unmortgageable in its current state — derelict, no kitchen, short lease — with a plan to refurbish and refinance.
• Chain-break: you have a buyer for your existing property but completion timings do not align with the property you are buying.
• Funding a refurb-and-refinance project where the bridge funds the purchase and works, and a buy-to-let mortgage refinances at the end.
• Time-sensitive commercial property purchase where a conventional commercial mortgage will take 8 to 12 weeks but exchange must happen in 4.

How bridging is priced

UK bridging is priced monthly, not annually. Typical ranges in 2026 sit at 0.65 to 1.1 per cent per month on regulated and unregulated bridging for clean cases. Higher LTVs and more complex security push pricing higher. There are usually arrangement fees of 1.5 to 2 per cent, valuation fees, lender legal fees and your own legal fees on top. A common mistake is to compare bridging headline rates with mortgage APRs; the all-in cost over a 6-month bridge can be 10 to 12 per cent of the loan amount once fees are included.

Loan-to-value and LTGDV

Standard bridging LTVs sit at 60 to 75 per cent of the day-one property value. On refurbishment bridges, lenders work to loan-to-gross-development-value (LTGDV) — the projected value after the works are complete — capped at 65 to 75 per cent. Funds are usually drawn in stages against the works. Lenders specialising in heavy refurbishment (United Trust Bank, Hampshire Trust Bank, West One among them) are more comfortable with LTGDV structures than generalist bridgers.

UK lenders to look at

• Together — broad bridging proposition for residential and commercial, comfortable with adverse credit and unusual property.
• United Trust Bank — specialist in development and refurbishment bridging.
• Hampshire Trust Bank — bridging and development for SMEs and property investors.
• West One — wide product range including auction bridging and second-charge bridging.
• Hope Capital — specialist short-term lender focused on complex bridging cases.

The exit is everything

Underwriters spend more time on the exit than on the security. A bridge with no clear exit is a default waiting to happen. The three accepted exits are:

1. Refinance onto a long-term mortgage — usually a buy-to-let or commercial mortgage on the same property once it is rentable or trading.
2. Sale of the property — credible if the property is genuinely saleable at the assumed value in the assumed timeframe.
3. Sale of another asset — another property, a business, an investment. The lender will want evidence of value and saleability.

Regulated vs unregulated bridging

A regulated bridge is one secured against a property the borrower (or close family) will live in. It is regulated by the FCA and carries consumer protections. An unregulated bridge is secured against an investment property — buy-to-let, commercial, mixed-use — and is not subject to the same consumer rules. Most UK SME and property investor bridging is unregulated. The eligibility, documentation and pricing differ between the two routes.

Eligibility signals lenders look at

• Quality of the security property: location, condition, marketability.
• LTV and contribution: minimum 25 to 30 per cent equity day-one.
• Strength of the exit: refinance offer in principle, sale-agreed, or saleable asset.
• Borrower experience: first-time investors face tighter LTVs and pricing. Experienced landlords with 3+ properties get better terms.
• Credit history: less weighted than in mortgage lending, but recent unsatisfied CCJs or active bankruptcy still create issues.
• Source of deposit funds and AML checks.

Typical timeline

1. Day 0: Heads of terms agreed with the lender.
2. Day 1 to 3: Valuation instructed and inspection booked.
3. Day 3 to 10: Valuation report received; legal due diligence begins.
4. Day 7 to 14: Offer letter issued; legals complete.
5. Day 14 to 21: Completion. Faster on auction-pressure cases (7 to 10 days achievable with desktop valuation and clean title).

Common bridging mistakes

• Taking the cheapest headline rate without checking arrangement and exit fees.
• Assuming the property will refinance onto a BTL without checking with the BTL lender first.
• Underestimating refurbishment timelines — 6-month bridges that need 9 months to complete works create rate hikes or default penalties.
• Rolling up interest on a long term without modelling the compounding effect on the final balance.
• Not budgeting for stamp duty, legal fees, valuation, broker fees and contingency.

When bridging is the wrong product

If you are buying a stable, rentable property and the timing is not urgent, a buy-to-let mortgage or commercial mortgage will be far cheaper. If you are buying a property to live in, almost any residential mortgage will beat regulated bridging on cost. Bridging earns its place where speed, property condition or chain dynamics make a long-term mortgage impossible at the moment of purchase. Use it for the gap, not as a substitute for cheaper long-term debt.