As a train nerd I love the concept of HS2, and there have been mitigating factors but they all seem to add 1bn here, 3-4bn there. The facts are that the cost has ballooned from around 40bn to 72-98bn (all 2019 prices), and that’s for less than half the original route. It’s not unreasonable to estimate that the ‘full’ thing would have been £150bn, almost x5 the original estimate. The original estimate was so poor it’s beyond comprehension.
The original budget was £62.3bn in 2019 prices. 98bn in 2019 prices was the reset budget before go ahead. It was for the full y, not half.
Current funding envelope for phase 1 is £54bn in 2019 prices. That's up from £44.5bn in 2019 prices, it's budget within the 98bn for the full route
If it ended up 5x original budget, it would be £312bn in 2019 prices. Highly unlikely.
Last edited: