Written questions

Infrastructure

Commons · Question 21300 · Tabled 28 Aug 2026 · Treasury · Official record

Answered 9 Sep 2026

Question

Asked by Sarah Olney

To ask the Chancellor of the Exchequer, what his Department's policy is on providing support for infrastructure projects that have a negative net present value in their appraisals.

Answer

Answered by Emma Reynolds, 9 Sep 2026

The Government published a new version of the Green Book in February. This ensures that government decisions are no longer based solely on single metrics, such as benefit-cost ratios or net present social values. They must instead take into account the fu...