Capital programmes work better when consultation comes first

Capital programmes routinely reach public consultation after a preferred option is already fixed. At that point, the engagement cannot be genuine and the legal exposure is real. The question is not how to run a better late-stage consultation. It is how to build genuine engagement into the programme before options close.

What goes wrong when consultation happens too late?

Consulting after a commitment is made is not genuine consultation. This is not just a process observation. It is the legal position. The Gunning principles, the established legal test for fair public consultation in the UK, require that consultation takes place when proposals are still at a formative stage. If a preferred option is already fixed internally, a consultation exercise run afterwards cannot meet that standard, however well it is designed.

The pattern is common in capital programmes. A programme team develops a strategic outline case, identifies a preferred solution, and takes it through internal governance. Then, often at outline business case stage or even later, stakeholder consultation takes place. The preferred option is presented. The cost of changing it is prohibitive. Nothing genuine is on the table.

Treasury guidance makes the same point from a different angle. The HM Treasury Green Book, which governs appraisal and evaluation in central government, is explicit: the preferred option should emerge from analysis, not precede it.

Decision-makers should be presented with genuine choices. A capital programme that consults only after the preferred option is confirmed is presenting stakeholders with the conclusion of a process they had no part in.

The consultation is then, at best, a communication exercise. At worst, it is a legal liability.

Why do capital programmes fix their preferred option so early?

The academic literature on major project failure calls this lock-in: escalating commitment to a course of action that becomes progressively harder to reverse. It is not a failure of intent. It is a structural feature of how capital programmes develop, and it typically takes hold before formal approval, not after it.

Once a project team has invested time and organisational capital in a preferred solution, the cost of reconsidering feels prohibitive. Sunk costs accumulate. Internal momentum builds. Alternative options quietly disappear. By the time a preferred option reaches an approval committee, the real decision has usually already been made.

Behavioural research explains why this is so persistent. Project teams systematically underestimate costs and risks while overestimating benefits, and this optimism bias intensifies as commitment grows. Internal challenge becomes harder to sustain. External challenge is needed precisely because internal teams are the least well-placed to provide it.

The Infrastructure and Projects Authority’s Project Routemap exists because of this dynamic. It is positioned as an early intervention, before critical decisions become embedded, because that is when the leverage is highest. The National Audit Office has consistently found that weak option appraisal and premature commitment are among the most common causes of major programme failure.

Many capital programmes consult late not because they chose to, but because by the time they reach the consultation stage, genuine optionality has already been lost.

What does earlier engagement actually look like in practice?

Genuine consultation in a capital programme context means engaging stakeholders before the shortlist is closed, not before the decision is announced.

For most capital programmes, that intervention point is Strategic Outline Case stage, the earliest formal stage of the Treasury business case process, when options are being generated and assessed against each other. Options are still genuinely open. Stakeholder input can shape which directions are taken forward. Consultation at this stage meets the legal standard precisely because it is formative.

By the time an Outline Business Case, the stage at which a preferred option is typically identified and documented for approval, is underway, it is usually too late for consultation to be genuinely formative. It may still be valuable as stakeholder communication or as a check on implementation design. But it cannot substitute for earlier engagement.

In practical terms, this means:

• Stakeholder mapping and engagement planning should begin at programme initiation, alongside option generation, not after a preferred option is confirmed.
• Governance approvals for preferred options should require evidence that consultation has already taken place, not that it is planned.
• Where a programme has already reached preferred option stage without genuine prior consultation, the right course is to take advice on the legal position before proceeding.

Project 13, the infrastructure industry programme led by the Institution of Civil Engineers that set out to improve major project outcomes by changing how and when collaboration happens, reached the same conclusion: better results come from bringing owners, advisers, and stakeholders together before major commitments are made. The traditional model of fixing the solution first and consulting afterwards is what drives poor outcomes on major programmes.

Treasury guidance, IPA practice, and the project research literature all point the same way. If your programme has not consulted before the preferred option was set, it is worth finding out now whether that position is recoverable.

How tCI Can Help

Organisation Wide Learning Hub Access
Equip your entire team with professional consultation skills through one platform. Self paced courses, live virtual classrooms, practical toolkits and expert resources that build a shared baseline of competence across your organisation. Trusted by councils, NHS bodies and regulators nationwide.

Bespoke Training Workshops
Training that works with your real projects, not hypothetical scenarios. Sector tailored sessions help teams apply good practice to live challenges: sharpening consultation documents, building defensible codebooks, strengthening equality analyses. Half day or full day workshops for health, local government, planning and public service teams.

Coaching for Complex or High Risk Consultations
Expert guidance when the stakes are highest. One to one and small group coaching for senior officers navigating legally exposed or politically contentious decisions. Strengthen your judgement on proportionality, evidence standards and challenge management. Essential for organisations that may face judicial review risk or major service changes.

Whether you’re preparing for a high stakes service change, building long term consultation capability, or need confidence that your evidence approach will stand up to scrutiny, we can help.

Contact tCI: hello@consultationinstitute.org