- The total net overrun for the 305 projects was over £23 billion above initial estimates. This is the equivalent of over £900 for every household in Britain.
- The average overrun was 33.7 per cent.
- 14 projects overran by more than the Millennium Dome.
- 57 per cent of projects overran, compared with only 14 per cent that came in under-budget
Among the more outrageous examples, they highlight a couple of BOM's "old favourites"- the Astute class subs, currently £1bn over original budget, and of course, the NHS "supercomputer", currently £10.1bn over original budget.
An outstanding piece of work which will act as a handy reference for any taxpayer who wishes to remind him/herself why we should never believe government cost estimates.