BCIS build cost per sqm by region. BCIS itself is subscription-only, so each tile shows the BCIS estate housing lower quartile / median / upper quartile (£ per sqm of gross internal floor area) as reprinted in one named council viability study for that region, with the study date. Northern Ireland has no public figure. Tap a region for the source and to load the workbench with its median prefilled.
Six London boroughs where viability bites hardest. Each page sets out borough CIL, Mayoral CIL2 zone and a working GDV range.