The UK is entering a period in which infrastructure is being asked to do more. It is central to economic growth, regional development, energy security, climate resilience, housing delivery, defence readiness and public service renewal. The need for long-term investment is clear, and the Government’s current 10 Year Infrastructure Strategy has reinforced the importance of creating greater certainty for clients, investors and the supply chain.
In this context, infrastructure should be understood in its widest sense. It is not only the physical assets most commonly associated with the term, such as roads, rail, ports, utilities and energy networks. It also includes the industrial, digital, logistical and organisational systems that allow the UK to function, compete and respond to change.
The infrastructure challenge is not simply whether the UK has enough ambition. There is no shortage of need, policy focus or pipeline visibility. The more important question is whether the UK has the delivery capability to turn major infrastructure plans into successful outcomes, consistently and affordably, over the long term.
That challenge is intensified by the nature of infrastructure delivery itself. Major programmes often attract high levels of public, political and investor scrutiny. They are complex, lengthy and exposed to change, with cost and schedule affected by inflation, market capacity, stakeholder requirements, environmental obligations, evolving policy priorities and wider economic conditions. Maintaining confidence in that environment requires more than good engineering. It requires clear governance, disciplined programme management, transparent baselines and astute commercial strategies.
Major infrastructure programmes can come under pressure for a number of recurring reasons. Scope may continue to develop after early budgets and programmes have been set. Assumptions and exclusions may not be clearly owned, communicated or updated. Governance can become fragmented, with decision-making spread across multiple stakeholders and delivery bodies. Procurement may be launched before the market is fully engaged or the scope is mature enough to support the intended risk transfer. Over time, changes in policy, funding, inflation, regulation, stakeholder requirements and supply chain capacity can all test the original baseline.
One of the most important lessons is that scale does not remove the need for discipline. The largest and most complex programmes can sometimes assume that their scale makes them exceptional, and that being exceptional justifies bespoke processes, unconventional strategies or novel delivery models. In practice, the opposite is often true. The greater the scale, complexity and scrutiny, the more important it becomes to establish clear outcomes, transparent baselines, strong governance, performance-led procurement and portfolio-level control.
G&T brings three things to Infrastructure delivery: 1. live cost and procurement intelligence drawn from an active national portfolio of infrastructure developments – across defence, transport, energy, utilities and manufacturing - that totals in excess of £40bn construction spend per annum, 2. a partner-led model that maintains continuity of judgement from feasibility to handover over the long term and 3. supply chain relationships that enable substantive early engagement before formal procurement begins.
The observations that follow illustrate what our experience means in practice. These are the five foundations that we believe underpin delivery confidence. They are not a single solution to every infrastructure challenge, but they provide a practical way to focus on the areas that most influence whether major programmes remain clear, controlled and capable of adapting through change.
1. Define the outcomes
Every major infrastructure programme should begin with a clear understanding of what it intends to achieve and the benefits it will generate. That may be increased capacity, resilience, connectivity, energy security, regeneration, industrial growth, housing delivery or public service improvement. Whatever the objective, it needs to be explicit from the outset because it will shape the business case, requirements, design, procurement strategy, delivery model and operational outcomes.
This is particularly important because major programmes can evolve significantly over time. Scope may develop, requirements may change and external pressures may increase. Without a clear benefits framework, it becomes harder to test whether decisions are protecting the original purpose of the investment or diluting it.
Benefits realisation should therefore act as a golden thread from initial business case through design, procurement, delivery and operation. It should influence requirements, commercial strategy, delivery planning and stakeholder engagement. It should also support clearer communication about why the programme matters and what value it will create.
This matters not only for individual projects, but also for wider economic development. A transport scheme may unlock housing, regeneration or employment. Energy infrastructure may enable industrial growth or data capacity. Public infrastructure may support resilience, productivity and quality of life. If those benefits are not clearly defined and actively managed, programmes are more vulnerable to challenge when cost, scope or schedule pressures emerge.
2. Build a transparent baseline
Large-scale infrastructure programmes are often judged publicly against early estimates for cost and schedule. However, those early estimates may have been prepared at a different stage of scope maturity, under different assumptions, or before key exclusions, risks and delivery constraints were fully understood. Without that context, it can be difficult to distinguish between poor control, legitimate scope development and the effect of external change over time.
This is why transparent baselines matter. An estimate is not just a set of numbers, and a schedule is not just a date. Both need to be understood alongside their assumptions, exclusions, base date, risk allowances and level of design maturity. These are the “picture frame” around the cost and schedule that articulate the essential boundaries and limitations. Without that frame, figures can be misread or compared in ways that do not reflect what was actually being priced, planned or approved.
The discipline required is not complicated in principle, but it is often difficult to maintain on long-term programmes. Assumptions need clear ownership and cross referencing to risks. Exclusions need to be explicit and agreed as they often represent a transfer of responsibility. Baselines need to be reviewed as scope develops. Changes need to be recorded, tested and communicated.
Andrew Paul, partner at G&T, explains, “Cost, schedule, risk and benefits need to be aligned so that decisions are made using a coherent view of the programme, rather than separate strands of information that do not fully connect.”
This is particularly important for major projects that may take up to 20 years to move from early development to operation. During that period, macroeconomic conditions, legislation, stakeholder expectations, political priorities, technology and market capacity can all change. Transparent baselines do not remove those pressures, but they allow clients and sponsors to understand them earlier and respond with greater confidence.
3. Set up governance and controls
Major infrastructure programmes depend on far more than design and capital funding. Successful delivery relies on the systems and processes that sit behind the programme: governance, programme controls, cost management, risk management, reporting, stakeholder coordination and decision-making. These are often described as support functions, but on complex programmes they are strategic delivery tools.
Programme Management Office (PMO), project controls and assurance create the reliable, integrated information clients need to make better decisions. They bring cost, schedule, risk and benefits together so that the programme can be understood as a whole. This is particularly important when decisions have significant time and cost consequences, or when there are multiple stakeholders, funding routes, interfaces and dependencies to manage.
Time is a major cost driver on infrastructure programmes. Once delivery is underway, people, plant, equipment, logistics and supply chain capacity are all committed. Delayed decisions can therefore have a substantial cost impact, even where the delay itself may appear procedural or technical. Strong programme controls help clients understand those consequences before they become unavoidable.
The best PMOs do more than report progress. They create discipline around decision-making, identify emerging risk, project trends to inform forecasts, test whether the programme remains aligned to its benefits, and provide the evidence needed to maintain confidence with sponsors, funders and delivery partners. In that sense, programme management is becoming part of the UK’s national infrastructure capability.
The creation of the National Infrastructure and Service Transformation Authority (NISTA) reflects this wider recognition that infrastructure strategy and delivery oversight need to be more closely connected. Its role signals a shift towards stronger planning, prioritisation and delivery support across major programmes. For clients and delivery bodies, the same principle applies: governance and controls should not be bolted on once a programme is in difficulty but established early as part of the delivery strategy.
4. Procure for performance
Procurement is one of the clearest points at which delivery confidence can be strengthened or weakened. Major programmes need procurement strategies that reflect the maturity of the design, the clarity of the scope, the nature of the risks being transferred and the outcomes the client is seeking to achieve. If programmes go to market too early, or without sufficient clarity about what is being bought, the foundations for delivery become less secure.
This is not only a question of which contract form to choose. It is about whether the client has created the right conditions for the market to respond. On major infrastructure programmes, competition cannot simply be assumed. The scale and complexity of the work may require contractors to form joint ventures, bring in international expertise, invest in specialist capability or make long-term resource commitments. That means the supply chain needs early visibility of the opportunity, the scale and complexity, the package structure, the likely risk allocation and the timing of procurement.
Early market engagement is therefore essential. It helps clients test whether the proposed procurement route is deliverable, whether the scope is attractive, whether the risk transfer is realistic and whether there is sufficient market capacity to create genuine competition. Without that work, clients risk receiving too few bids, bids that do not align with the budget, or in extremis, no viable competition at all.
There is also a wider point about procurement culture. Procurement can become defensive, with teams focused on avoiding challenge rather than procuring for performance. Legal robustness is important, but it should not displace the central purpose of procurement, which is securing the right delivery partners, on the right terms, with the right incentives to deliver the required outcomes.
Jason Fowler, commented, “A performance-led procurement approach starts with clarity about what the programme needs to achieve. It then works back through scope, risk, market capacity, packaging, contracting strategy and delivery incentives. This helps procurement remain connected to the programme’s outcomes, rather than becoming a separate process driven mainly by compliance or risk avoidance.”
5. Manage the portfolio and protect confidence
Infrastructure cannot be managed effectively as a collection of isolated schemes. Transport, energy, water, defence, digital, housing and social infrastructure are increasingly interdependent. Decisions in one area can influence capacity, demand and value in another. A transport connection may unlock housing or regeneration. Energy infrastructure may enable industrial development or data capacity. Water and utility resilience may determine whether wider growth can be supported.
This is why portfolio-level thinking is becoming more important. Individual projects still need strong project controls, but they also need to sit within a wider view of national and regional priorities, funding constraints, market capacity and supply chain capability. The UK’s infrastructure pipeline gives industry a clearer view of future investment, but delivery confidence depends on how that pipeline is prioritised, sequenced and managed.
The political context is also becoming more regional. With the possibility of greater emphasis on devolution, regional growth and locally led investment, infrastructure delivery will need to operate across a more distributed landscape. That creates opportunities to align programmes more closely with local priorities, skills, housing need and economic strategy. However, it also reinforces the need for clear governance, consistent assurance and portfolio-level visibility so that national, regional and local priorities are connected rather than fragmented.
Portfolio management also helps protect confidence over time. It allows clients, government and investors to understand interdependencies, test affordability, identify pressure points and make choices about sequencing. It also helps the supply chain understand where demand is likely to fall, where capacity will be needed and how investment decisions should be planned.
As infrastructure delivery becomes more complex and more regionally distributed, the ability to manage across programmes will become increasingly important. Delivery confidence will depend not only on whether individual projects are well run, but on whether the wider system is prioritised, coordinated and assured.
Building the delivery muscle
These five foundations are not additional layers of process. They are the practical disciplines that allow clients, sponsors, investors and supply chains to make better decisions earlier. They help turn ambition into programmes that are deliverable, affordable and capable of retaining confidence through change.
If the UK is to deliver the infrastructure it needs, this delivery capability must be built and retained across government, clients, consultants and the supply chain. That requires investment in the earliest stages of programmes, when the decisions made have the greatest influence on cost, risk and deliverability.
Andrew Paul added, “It also means learning from major programmes and applying those lessons consistently. The UK can deliver major infrastructure well. Successful programmes show the value of clear sponsorship, strong delivery structures, disciplined controls and sustained commitment over time. The challenge is to make those conditions more consistent, particularly as the pipeline grows and delivery responsibility becomes more distributed across national, regional and local bodies.”
Building delivery muscle is not about adding bureaucracy. It is about creating the confidence to make better decisions earlier, to understand the implications of change and to maintain alignment between ambition, affordability and delivery.
Perhaps the most important lesson is that the largest and most complex programmes should not assume that their scale justifies departure from conventional good practice. The value of the five foundations set out here is in applying them consistently, early and without exception. Doing the basics well and doing them relentlessly does not deliver a basic result. On the most demanding programmes, it is precisely what delivers an outstanding one.
How G&T Helps
The UK’s infrastructure challenge is not only about setting ambition. It is about translating ambition into deliverable, affordable and well-governed programmes that create confidence for clients, investors, supply chains and the public.
G&T supports clients across the five foundations of delivery confidence, bringing together the commercial, schedule and assurance capabilities needed to shape and deliver complex infrastructure programmes. As an independent, client-side adviser, we help clients create clarity around cost, schedule, risk, procurement and delivery strategy.
We support clients by:
- helping define benefits, outcomes and delivery objectives from the earliest stages
- supporting programme set-up, governance, PMO and project controls
- aligning cost, schedule, risk, procurement and commercial strategy
- developing transparent baselines, assumptions and exclusions
- providing assurance, reporting and evidence-based decision support
- advising on market capacity, supply chain risk and procurement strategy
- helping create the conditions for competition, performance and delivery confidence
Our role is to help clients understand the position, test the evidence, challenge assumptions and make better and informed decisions earlier. On major infrastructure programmes, that clarity is critical.
The UK’s infrastructure ambitions will ultimately be judged not by the strength of its strategies, but by the quality and scale of its delivery. Building the capability to deliver relies upon clear stakeholder commitment and political conviction, supported by strong governance, disciplined programme management and the confidence to act early.