Same family, different jobs. A bridge buys time and condition on an existing building; development finance builds buildings. If the works are cosmetic-to-heavy but the structure you bought remains the value, that's refurbishment bridging. When you're creating the value from scratch (ground-up construction, or a conversion so deep the end product is effectively a new building) you've crossed into development finance, and the product changes shape around you.
How development finance differs
It funds in three layers: the land (or site) purchase, then the build cost released in arrears against a monitoring surveyor's certificates, with interest rolling on drawn funds only. Leverage is measured against total cost and against the gross development value, the end worth of the finished scheme, and terms run 18 to 36 months rather than a bridge's twelve. Underwriting goes deeper too: build costs per square foot, the contractor's covenant, planning conditions, warranties, professional team, and above all the sponsor: your track record of finishing what you start carries enormous weight, and first-time developers get materially less leverage than proven ones.
Cost comparison, honestly
Development money often carries a lower monthly rate than heavy-refurb bridging, but adds monitoring fees, non-utilisation considerations and a longer fee tail. Comparing headline rates across the two products misleads. The real question is fit: forcing a ground-up scheme into a bridge leaves you short of drawdown structure, and wrapping a six-week cosmetic flip in development finance drowns it in monitoring.
The crossover cases
Part-built schemes rescued mid-project, deep commercial-to-residential conversions, single-unit ground-ups on infill plots — these sit on the boundary, and different lenders classify them differently. That classification moves pricing and leverage more than negotiation ever will. Classification is a lender-selection decision, and it's worth getting professional eyes on it before you apply anywhere.
When your project finishes, remember the development exit bridge. It isn't about price (development money is not dearer than bridging); it's about fit: the dev facility is built for a build programme, not a sales period. An exit bridge repays it on time, keeps the lender relationship sweet for the next scheme, and can release equity early while the units sell.