Analysis · Preconstruction & delivery
Keeping the approved case alive through delivery
How schemes drift from the case that was approved, one decision at a time, and how to see it early.

Most schemes do not fail on one decision. They drift, as a series of reasonable changes each move cost or time a little.
The approved case is the reference point. Monitoring against it, rather than against the latest budget, shows how far the scheme has moved and what it has cost.
The most useful output is simple: the next decision, who needs to take it, and what it means for the return.
For the stages before building starts, see why development sites fail, and how gateways keep them viable.