How Development Finance Works: A Developer's Guide to Drawdowns, GDV and Exit

Development finance confuses a lot of first-time developers because it doesn't behave like any other loan they've used. It isn't a lump sum. It isn't assessed on your income. And the figure everyone talks about — GDV — isn't even the number the loan amount is based on, most of the time. Here's how it actually fits together.

Two numbers drive every development loan

Development lenders look at your scheme through two lenses at once:

• Cost — the total cost to deliver the scheme: land or purchase price, build cost, professional fees, contingency and finance costs.
• Gross Development Value (GDV) — what the finished scheme will realistically be worth, based on comparable evidence, once every unit is built and sold (or valued, if you're holding).

Facilities are typically expressed as a percentage of cost (loan to cost) and a percentage of GDV (loan to GDV), and lenders generally fund up to whichever of the two produces the lower amount. Get your build cost appraisal wrong — too optimistic on cost, or too bullish on end value — and it shows up immediately in how much a lender will actually advance.

Why the loan arrives in two parts, not one

Unlike a bridging loan, which is usually released as a single amount on completion, development finance is split:

• A day-one tranche to fund the land or property purchase (if you don't already own the site).
• A build facility, released in stages as construction actually happens.

The build facility isn't released on trust or against invoices alone. Almost every development lender appoints a monitoring surveyor (sometimes called an Employer's Agent or Independent Monitoring Surveyor) whose job is to independently verify that work has actually progressed to the stage claimed, before the next drawdown is authorised.

What a drawdown actually involves

In practice: your build programme sets out expected stages (say, substructure, superstructure, roof, first fix, second fix, completion). As each stage is reached, the monitoring surveyor visits site, confirms progress against the programme and cost plan, and signs off the drawdown request. The lender then releases funds, usually within a matter of days of sign-off.

This is the step that catches out developers who haven't done it before: if your programme is unrealistic, or you haven't built in time for the monitoring surveyor's visits and sign-off, drawdowns get delayed — which then delays paying your contractor, which delays the build. A realistic programme, built with this process in mind, is one of the most underrated factors in a smooth development project.

What lenders want to see before they say yes

• Planning permission in place, or a strong, evidenced route to obtaining it
• A QS-reviewed or otherwise credible build cost appraisal, with sensible contingency
• A build team or contractor with a track record appropriate to the scheme's size
• A defensible GDV, backed by genuine comparable evidence rather than optimism
• Meaningful equity or land value contribution from you — lenders want to see you're exposed to the deal too

Planning your exit before you've laid a brick

Development finance is short-to-medium term, and the exit needs to be thought through from day one, not at practical completion. Most schemes exit one of two ways: sale of the finished units (sometimes with pre-sales agreed during the build to de-risk the exit), or refinance onto a term investment facility if you're holding to let. Either way, lenders want to see that thinking reflected in your appraisal from the outset.

When development finance isn't the right tool

Not every project that involves "building work" needs a development facility. A cosmetic refresh or even a fairly substantial internal refurbishment can often be funded more simply — see our guide to light vs heavy refurbishment finance for where that line typically falls. Development finance earns its complexity on schemes involving genuine new build, major conversion, or structural work that changes the footprint or use of a building.

If you've got a scheme and want an honest view of whether it's fundable, and roughly what shape the facility would take, see our development finance page or send us the numbers directly.