Bridging loan costs catch borrowers out more than almost anything else in property finance. The headline monthly rate looks low — 0.65% doesn't sound like much — but the full cost picture includes arrangement fees, exit fees, valuation, legal fees on both sides, admin charges, and rolled interest that compounds over the loan term. This guide breaks down every cost component, shows you exactly what to expect on a typical loan, and explains how to minimise what you pay.
The primary cost of a bridging loan — charged monthly on the outstanding loan balance. Rates range from 0.55%/month for straightforward, low-LTV loans to 1.25%/month or more for complex, high-LTV, or specialist deals. Note: you pay interest on the gross loan amount (including rolled interest), not just the original advance.
A one-off lender fee for setting up the facility — typically 1%–2% of the gross loan. On a £500,000 loan at 1.5%, that's £7,500. Usually deducted from the loan proceeds at completion rather than paid upfront in cash.
Some lenders (not all) charge an exit fee of 0.5%–1% on redemption. More common among lenders offering lower headline rates. On a £500,000 loan with a 1% exit fee, that's £5,000 payable when you repay. Always factor this into your total cost comparison.
An independent RICS valuation is required by all bridging lenders — costs £500–£2,000 for residential, £1,500–£5,000 for commercial or complex properties. Paid upfront, not from the loan. Some lenders will allow a desktop or drive-by valuation on lower-risk residential deals, reducing cost and time.
The lender's solicitors charge for their due diligence work — typically £1,500–£3,000. These are paid by you (the borrower), not the lender. They cover title review, facility documentation, and charge registration.
Your solicitor's fees for the transaction — typically £1,000–£2,500 for a standard bridging completion. If the bridging loan is also funding a property purchase, add conveyancing costs on top.
If you use a broker (recommended for complex deals), they typically charge 1% of the loan amount, sometimes a fixed fee. A good broker should save you more than their fee by accessing better rates and negotiating fees. Broker fees vary — some charge upfront, others are paid by lender commission only.
Some lenders charge small admin fees — CHAPS payment fees (£25–£50), drawdown fees for development facilities (£250–£500 per drawdown), or title insurance. These are typically minor but worth checking in the offer letter.
How you handle the monthly interest significantly affects your cash flow and total cost. There are three approaches:
Interest is added to the loan balance each month rather than paid from your own funds. No monthly cash outflow — everything is settled on exit when you repay. The catch: interest compounds on the growing balance. On a £500,000 loan at 0.75%/month over 9 months, rolled interest adds approximately £34,000 to the balance by the time you exit.
The full interest for the agreed term is calculated upfront and deducted from the gross advance on day one. You receive less net funding but pay no further interest if you exit on time. If you exit early, the lender refunds the unused retained months. Better if you're confident of a short, defined exit timeline.
You pay the monthly interest from your own funds — like a standard mortgage payment. No compounding, lowest total interest cost, but requires regular cash outflow. Suitable for borrowers with reliable monthly income who want to keep the loan balance down.
| Method | Monthly Cash Outflow | Total Interest (6 months, £500k at 0.75%) | Best For |
|---|---|---|---|
| Rolled | None | ~£23,000 (compounding) | Investors with no monthly income from asset |
| Retained | None (deducted upfront) | £22,500 (simple) | Short, defined exit timelines |
| Serviced | £3,750/month | £22,500 (simple) | Borrowers with regular income |
Loan: £600,000. Rate: 0.75%/month. Term: 6 months. Rolled interest. Arrangement fee: 1.5%. No exit fee.
| Cost Item | Amount |
|---|---|
| Gross loan amount | £600,000 |
| Arrangement fee (1.5%) | £9,000 (deducted from advance) |
| Net day-one advance | £591,000 |
| Monthly interest on £600k at 0.75% | £4,500/month |
| 6 months rolled interest (approx) | £27,500 (compounding) |
| Valuation fee | £1,200 |
| Lender legal fees | £2,000 |
| Your legal fees | £1,500 |
| Total repayment on exit | £627,500 (loan + interest) |
| Total cost of finance | ~£41,200 (6.9% of original loan) |
| Finance Type | Typical Annual Cost | Typical Term | Best Use |
|---|---|---|---|
| Bridging loan | 7%–15% p.a. (all-in) | 1–18 months | Speed, short-term, non-standard |
| Buy-to-let mortgage | 4%–7% p.a. | 2–5 years | Long-term rental investment |
| Commercial mortgage | 5%–8% p.a. | 5–25 years | Long-term commercial ownership |
| Development finance | 8%–12% p.a. | 6–24 months | New build or major conversion |
Bridging costs more per annum than long-term finance — but it's designed for short-term use. The cost per month on a 3-month bridging loan is far lower than the cost of missing a time-sensitive opportunity entirely.
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