Bridging finance explained: how refurbishment loans work

Bridging finance is what makes heavy refurbishment deals possible. A normal mortgage won't lend on a property with no kitchen, dangerous wiring or structural problems — but those are exactly the properties with the most value to add. Bridging fills the gap. Here's how it works, in plain English.

What bridging is

A bridging loan is short-term (usually up to 12–18 months), interest-heavy finance secured against property. You use it to buy and refurbish quickly, then repay it from an exit — either a sale (flip) or a refinance onto a longer-term mortgage (BRRR).

Because it's short-term and higher-risk, it's priced accordingly: expect monthly interest rather than annual, plus fees.

The two parts of a refurb facility

A refurbishment bridge usually has two components:

1. The day-one advance — a percentage of the purchase price or current value (limited by LTV), released on completion to help you buy.
2. The works facility — funds for the refurbishment itself, released in stages as the work progresses.

The total facility is capped against the end value — the LTGDV — commonly around 65–70%.

Drawdowns and the monitoring surveyor

The works money isn't handed over up front. It's released in drawdowns — tranches paid as each phase of the refurbishment is completed and signed off by the lender's monitoring surveyor.

This is why a clear, phased schedule of works matters so much: the phases and their subtotals are what the drawdowns hang off. A vague schedule means slow sign-offs, and on a bridge every extra week is more interest. Our bridging-loan calculator shows how the advance, works facility and interest fit together.

The costs to budget

• Interest — charged monthly; can be serviced monthly, rolled up (added to the loan) or retained (deducted up front).
• Arrangement fee — typically 1–2% of the loan.
• Exit fee — some lenders charge one; many don't.
• Broker, valuation and legal fees — plus the monitoring surveyor's fees.

Model these over a realistic timeline, not a hoped-for one — a project that slips three months eats its margin in interest.

The exit is everything

No lender advances against a bridge without a credible exit. The two are:

• Sale (flip) — you sell the finished property and repay the loan from the proceeds.
• Refinance (BRRR) — you remortgage at the higher post-works value onto a term mortgage, repay the bridge, and keep the property. See our BRRR schedule of works guide.

Before you take a bridge, stress-test the exit: what if the sale takes longer, or the refinance valuation comes in light? A deal that only works at the top of the range and the fastest timeline is a bet, not a plan.

The bottom line

Bridging is a tool, not a trap — used well, it lets you take on the value-add deals mortgages can't touch. The investors who use it profitably treat the interest clock as a real cost, phase their works tightly for fast drawdowns, and never take a bridge without a credible, stress-tested exit.