Why smarter water delivery models matter
Key takeaways
Smarter, collaborative delivery models are essential to overcoming fragmentation in the UK water sector and efficient programme delivery
Investment alone won’t solve the UK’s water challenges. Success depends on delivery models capable of managing complexity
Delivery models with alliancing, digital integration and early mobilisation enable accelerated, cost-efficient programmes and innovation
The UK’s water infrastructure is facing a convergence of challenges. Climate change is intensifying weather extremes, population growth is increasing demand, and aging assets are struggling to meet modern expectations. At the same time, public scrutiny around environmental performance and service delivery is rising. Despite this urgency, the way we deliver water infrastructure remains fragmented, slow, and reactive. While investment and regulation dominate the conversation, the real bottleneck lies in delivery. Without smarter, integrated models, even the most well-funded plans risk falling short.
Investment alone is not enough
The government’s 10-year Infrastructure Strategy identifies water as a priority sector for private capital investment. It promotes the use of regulated asset base models and encourages public-private partnerships to unlock both funding and delivery capability. These frameworks are designed to align investment with national goals such as regional growth, net zero, and long-term resilience.
However, money alone won’t solve the problem. Large-scale projects designed to secure future water supplies are already in motion, but they are complex and involve multiple regulators and stakeholders. Their success depends not just on investment, but on how effectively they are delivered. New approaches, such as competitive procurement models that bring in private expertise, offer opportunities for innovation and efficiency, but only if we adopt delivery methods that can handle this complexity.
The Strategic Infrastructure Plans (SIPRs) being developed by water companies also highlight the need for integrated, long-term thinking. Yet without delivery models that reflect the ambition of these plans, we risk falling short of the outcomes they promise.
The complexity of delivery
Water infrastructure projects often span multiple jurisdictions, regulatory bodies, and stakeholder groups. This fragmentation can lead to misaligned incentives, unclear governance, and delivery delays. Traditional procurement models, which rely on siloed teams and transactional relationships, are ill-equipped to manage this complexity.
Collaborative delivery models offer a more effective approach. Alliancing, progressive design-build, and delivery partner models foster integration, transparency, and shared accountability. Anglian Water’s adoption of an alliancing approach demonstrates how aligning risk and reward across partners and embedding collaboration from the outset can consistently deliver better outcomes, such as reducing programme costs, accelerating delivery timelines, and introducing innovative trenchless technologies to minimise environmental impact. A recent example comes from United Utilities, where Mace Consult is leading a consultancy team to support the company’s AMP8 Commercial Consultancy Framework. This includes programme and project management, PMO support and commercial assurance and audit services. The framework is designed to help United Utilities strengthen governance, improve financial rigour, and ensure that its investment programme is delivered efficiently and in line with long term strategic outcomes.
Our Future of Major Programme Delivery (FMPD) report reinforces this need for integration, warning that fragmented delivery models are a major driver of delays and cost overruns in UK infrastructure. The report found that poor coordination and siloed governance can add months or even years to programme timelines. By embedding digital platforms and data-driven decision-making, water programmes can avoid these pitfalls and mirror the success seen in other major sectors.
Proven models in action
The UK does not need to start from scratch. Collaborative models have already proven their value in other infrastructure sectors. The London 2012 Olympics used an integrated delivery partner model to manage complexity and drive performance across a vast programme.
One of the most important lessons from these successes is the value of getting it right from the start. Within the water sector, mobilisation efforts, such as those seen in Anglian Water’s reservoir programme, highlight how structured approaches like POPIT (People, Organisation, Process, Information, Technology) and Hot Starts can build trust, clarify roles, and accelerate integration. Hot Starts are intensive early-phase workshops designed to bring all delivery partners together before work begins. These approaches focus on agreeing objectives, defining governance, and establishing ways of working so everyone starts aligned and ready to collaborate from day one. These methods lay the foundation for performance throughout the programme lifecycle.
To meet the UK’s water infrastructure needs, clients and regulators must rethink how projects are delivered. Moving away from transactional procurement towards models that reward collaboration and innovation is essential to achieving long-term resilience and value.
Government can play a critical role in enabling this shift. Expanding the use of regulated asset base and public-private partnership frameworks, supporting competitive procurement models like Direct Procurement for Customers (DPC), and promoting digitalisation and modern construction methods, principles central to the Future of Major Programme Delivery report, will be key to improving productivity, sustainability, and long-term value.
Ultimately, the future of the UK’s water infrastructure depends not just on how much we invest, but on how we deliver. Smarter delivery models are not a luxury, they are a strategic imperative. If we get this right, we can build a water system that is resilient, sustainable, and fit for the future.