How the numbers are built.

The real sales picture, not a guess.

Residual searches Land Registry and Rightmove to build the true sales picture for your site — so GDV is grounded in what's actually happening, not an optimistic round number.

Your call on the value. The search shows you the evidence — you decide the £/ft² the appraisal runs on. Residual never guesses your sales value or land price.

Grounded in real developer benchmarks.

The build is priced against real benchmarks by type, size and specification — base build, externals and abnormals, utilities, contingency and professional fees — then every line is yours to override with your own quotes and cost plan.

The way a lender reads it.

Debt is capped at the lower of loan-to-GDV and loan-to-cost, interest rolls up, and equity goes in first — so you see peak debt, the equity genuinely required and the true finance cost, exactly as a development lender would model it.

What has to be true for this deal to work.

Residual doesn't stop at a residual land value. It stress-tests the scheme — sensitivity, break-even GDV and build cost, and the assumption doing the heavy lifting — then reverse-solves the levers: the land price, sales value or build cost that would make a marginal deal stack. Every verdict is broken into the tests behind it, so you can always see why.