Bridging Loan vs Development Finance: What Is the Difference?
Mark Grant
Relationship Manager · Apr 26, 2026 · 7 min read
Bridging finance and development finance are frequently confused in the UK property market. While both are short-term property-backed products, they serve fundamentally different purposes and are assessed, structured, and priced very differently. Choosing the wrong product can result in a declined application, higher costs, or a facility that does not fit the project.
What each product is designed for
Bridging finance is designed for property transactions where fast funding is needed and the exit is either a sale or a refinance to a longer-term product. It is typically used to acquire properties quickly, bridge between a purchase and a sale, or fund light refurbishment. The loan is advanced as a lump sum against the current property value (not the development value) and interest can be rolled up until repayment.
Development finance is designed for ground-up property development or major redevelopment projects. The loan is assessed against the gross development value (GDV), the expected value on completion, rather than the current site value. Funds are advanced in stages aligned to construction milestones, with each drawdown verified by an independent monitoring surveyor. Development finance is structured for projects where significant value is being created, not merely transacted.
How lenders assess each product differently
Bridging lenders assess applications primarily on the current value of the property, the LTV against that current value, the borrower's exit strategy, and their creditworthiness and experience. The assessment is relatively straightforward and decisions can be returned within 24-48 hours for a well-packaged application.
Development finance lenders conduct a much more detailed assessment: the GDV (requiring a development appraisal), the build costs and programme (requiring a detailed schedule of works and contractor information), the borrower's development track record, and the exit strategy (typically sales or long-term let). The underwriting process takes 3-6 weeks and requires significantly more documentation.
"Applying for a bridging loan when you need development finance wastes time. Applying for development finance when you only need a bridge means weeks of unnecessary underwriting. Getting this distinction right at the start is essential."
- Mark Grant, Relationship Manager, Spark Finance
LTV and loan amounts: key structural differences
Bridging loans are typically available up to 75-80 percent of the current value. On a property valued at 500,000 pounds, a bridging lender might advance 375,000-400,000 pounds. The borrower needs meaningful equity in the property from day one.
Development finance is typically structured at 55-65 percent of GDV (gross development value) and up to 80-90 percent of build costs. A 2 million pound GDV scheme might attract development finance of 1.1-1.3 million pounds, covering the land purchase plus build costs, with the developer contributing the remainder as equity. The facility is drawn down progressively through the build, not all at day one.
Which product does refurbishment fall under?
Light to medium refurbishment (cosmetic works, new kitchen, rewire, new bathroom, redecoration) is bridging finance territory. The property exists, has a current market value, and the works do not fundamentally change its nature. Most bridging lenders will consider light refurbishment and advance on the current as-is value.
Heavy refurbishment (structural work, extensions, basement excavation, change of use) can go either way depending on the scale and complexity. Some specialist bridging lenders offer refurbishment bridging with staged drawdowns. For very large or complex projects, development finance may be more appropriate. The decision point is usually whether the works require planning permission and whether the build cost represents more than about 30-40 percent of the end value.
The bottom line
Spark Finance advises on whether bridging or development finance is the appropriate product for your specific project, and arranges both through specialist lenders. Apply at apply.sparkfinance.co.uk or contact a Spark Finance adviser to discuss your project.
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