A part-built scheme is a harder credit than either a bare site or a finished building. The security is a partly complete structure with no independent value, the cost to complete is uncertain until someone measures it, and the incoming lender inherits whatever the outgoing one was unhappy about.
How far through the build you are changes the product entirely. A scheme that is wind and watertight, structurally 80% or more complete, roofed and at first fix or beyond, reaches finish and exit finance at sensible pricing. A scheme with foundations and a steel frame does not, and needs a development lender willing to take the whole remaining programme.
Pricing reflects that. Rescue facilities are priced case by case, because there is no rate card for a situation that has no standard shape. Leverage is usually up to 70% of current value or 65% of end value, whichever binds, and the story matters as much as the numbers.
An independent cost to complete
A quantity surveyor's measure of what is actually left, not the previous contractor's estimate. It is the number the whole facility is sized on, and getting it independently is the fastest way to make the case credible.
The reason the last facility stopped
A lender will find out, so it is better told than discovered. A main contractor insolvency, a cost overrun and a dispute are three different risks with three different answers, and only one of them is about you.
Speed weighed against price
In a rescue the cost of another month is usually larger than the difference between a good rate and an excellent one. We say so plainly rather than optimising the headline while the site stands still.
Title, retentions and the contractor position
Unpaid subcontractors, retention, materials on site and any charge or notice already registered all have to be resolved before a new facility can draw. That work is usually what sets the real timetable.