What it covers
Self-build mortgage broker; published rate cards from panel lenders (BuildLoan accelerator product).
What it costs
Self-build rates broadly 1.0-1.5% above standard residential; stage-payment products from £1,995 arrangement fee.
What changed recently
Bank Rate held at 3.75% June 2026; self-build rates eased through Q1 2026 in line with mainstream mortgage market.
Where it fits in a UK knockdown rebuild
Use Buildstore as one input among several when sizing a KDR. The calculator on this site cross-checks against BCIS, FMB, and HMRC simultaneously so no single reference drives the headline. For the live worked example, see the calculator; for every figure's primary source, see the sources ledger.
Primary source
Verified 2026-06-21 against the source URL above.