Part one: how rapid data centre expansion is testing the UK’s planning and infrastructure regime – planning pressures

February 2026

Nicholas Smith and Cody Reeves

The UK is in the midst of a data centre boom. Exponential growth in cloud services, artificial intelligence, streaming, e-commerce and internet usage is driving unprecedented demand for secure, low-latency computing and storage capacity. The supply market is reacting at pace, dictating the development of swathes of land across the nation[1].

Hyperscalers are targeting exponential growth and committing investments in the billions of pounds[2];
Colocation facility providers are scaling to meet the growing technological demand of UK businesses[3];
Edge facilities are proliferating to support low latency applications and the elimination of down-time risk[4].

The result is a construction pipeline that, in scale and speed, is challenging the UK’s planning and infrastructure systems.

The UK government has elevated data centre growth to a strategic national priority and in September 2024 designated data centres as part of the country’s critical infrastructure[5]. This was followed by a November 2025 report on data centre planning policy[6], focusing on data centre demand and how to streamline the planning and construction process.

Under the UK Compute Roadmap 2025, the aim is to develop a number of AI Growth Zones (AIGZs) across the UK capable of each serving between 500MW and 1GW of demand by 2030[7].

However, even as the government signals ambition, delivery has become increasingly complex. In this three-part series, we will be considering the:

Planning pressures
Environmental constraints
The grid and a coherent national framework.

Together these pieces map the legal, regulatory and infrastructure challenges that now define the UK’s data centre landscape. Crucially, in considering their impact we can explore what a smarter, more coherent regime could deliver and in analysing each in turn, we begin to see what a path forward in the data age, under UK legislation, could look like. In part one of our three part series, we will be looking at the planning pressures data centre projects are facing. Their expansion is at a record pace[8] but the UK’s planning system is struggling to keep up. Long standing protections, such as the green belt and established planning frameworks are reshaping decision making and complicating the delivery of data centre projects across the UK.

Planning pressures

The source of tension is simple: data centres underpin our digital-first economy, but their mass development collides with regulatory frameworks from what is now frequently being seen as a by-gone era. These planning systems are designed for different land uses, slower growth cycles and are suitable for projects with a more modest environmental footprint.

The UK’s planning first system[9] remains the principal determinant of where and how data centres can be built but these facilities are unusual in planning terms. They are industrial in their energy and infrastructure requirements but often present a relatively benign operational profile compared to traditional manufacturing. Typical pinch points in industrial development such as traffic increases, concerns around facilitating an increased local workforce, uncontrollable emissions, and sound and light pollution are largely absent from data centre developments.

Yet several characteristics complicate planning pathways:

Site selection is constrained by technological limitations

Latency requirements, grid proximity, fibre connectivity and physical plot size all converge to limit the number of suitable locations. These constraints tend to push development toward metropolitan fringes, such as London and Manchester, and more localised strategic corridors, such as Slough and Hertfordshire, the latter being precisely where the green belt seeks to check urban sprawl. Data centre developers are increasingly testing the boundaries of green belt policy, arguing for “very special circumstances”[10] based on national digital resilience, economic benefits and the lack of suitable alternatives. Local planning authorities, however, remain committed to a presumption against inappropriate development in the green belt.

The result is a growing number of finely balanced determinations and a lack of dependable and consistent responses from local authorities resulting in uncertainty for data centre developers and a bloated decision-making process.

Local authorities frequently lack specific policies for data centres

This leads to ad-hoc treatment under general employment or industrial policies. Decision makers may be unfamiliar with the technical profile of modern data centre campuses, their proposed value and the minutiae of their impact once operational. In the absence of clear policy guidelines for decision makers to adhere to, applications enter information request cycles, repeated neighbourhood consultations and iterative design changes that extend determination periods, sometimes well beyond statutory targets (13 weeks for major developments[11]).

The cumulative impact of multiple data centre developments is increasingly impacting a small number of “hot spots”

Clusters of data centres can create concentrated demands on electricity networks, water resources and local transport infrastructure during construction. Authorities have begun to scrutinise phasing, construction logistics planning, and offsite reinforcement works more closely. Strategic planning tools, such as infrastructure delivery plans, and decision tracking processes, such as statement-of-common-ground mechanisms[12], are inconsistently deployed. This is producing uncertainty about the enabling works process, including who is responsible and how these works can be carried out. Concerns surrounding the timescale for the completion of approved projects are impacting long term profitability forecasts and tempering investor appetite.

Planning approval mechanisms

Against this backdrop, a notable legal trend is the increased use of the special development mechanisms available under UK planning law. While most data centres proceed via the ordinary town and country planning permission process, some have been facilitated through site-specific development orders[13] and local development orders in enterprise zones (such as the AIGZs[14] mentioned above). In addition, data centres can now opt into the Nationally Significant Infrastructure Projects (NSIP) consenting regime, taking the planning approval determination out of the hands of local authorities and into the hands of the Secretary of State. Striving for planning process efficiency does not come without its risks. Given the environmental impact of data centre projects (expanded on below), streamlined consent cannot displace the need for robust environmental assessment, local democratic input and the transparent balancing of harms and benefits.

As such, any interaction with planning authorities, whether that be those local to a relevant site or the Secretary of State, comes with difficulty and a degree of organisational challenge that can render projects dead on arrival. Those involved in obtaining planning consents should consider instructing lawyers who can ascertain both the best course of action to obtain required consents and subsequently navigate the complex processes both from initial submissions to complete approval.

Appointment documents should consider these issues and lay the groundwork for resolutions in the event that consents are not achieved. Mechanisms for additional time and money if consent is delayed should include:

Clear scope of planning obligations, including responsibility for managing pre‑application engagement, planning submissions, EIA coordination and responses to authority queries.
Responsibility for commissioning surveys (environmental, utilities, transport, noise, archaeology) and payment for repeat surveys required by authorities.
Programme risk allocation, including express entitlement to extensions of time when planning authority information‑request cycles or statutory consultees delay progress.
Fee adjustment mechanisms for unforeseen design changes required to satisfy planning officers or consultees.
Change control procedures governing design evolution during the planning phase.
Liability and reliance provisions, particularly where lenders and investors require reliance letters or expanded warranties.
Early termination and suspension rights if planning prospects materially diminish.

Beale & Company can support your data centre projects across the full lifecycle. We provide:

Contract drafting and review services, including planning‑risk allocation and consultant appointments;
Project advisory services, supporting clients throughout development and construction when legal or regulatory issues arise;
Dispute resolution services, including planning disputes, construction claims and grid‑connection issues.

If you are planning or delivering a data centre development in the UK, our specialist team can help you de‑risk and deliver your project with confidence.

Stay tuned for part two of this instalment where we tackle the environmental constraints impacting the viability and delivery of data centre projects.

[1] Data Centres | CBRE UK

[2] United Kingdom Hyperscale Data Center Market Size, Share & 2030 Growth Trends Report

[3] United Kingdom Colocation Market Size, Price Forecasts To 2033

[4] UK Edge Data Center Market Size, Growth and Forecast Report 2035

[5] Data centres to be given massive boost and protections from cyber criminals and IT blackouts – GOV.UK

[6] https://researchbriefings.files.parliament.uk/documents/CBP-10315/CBP-10315.pdf

[7] UK Compute Roadmap – GOV.UK

[8] The UK’s data centre boom: growth trends, drivers, and the rising power challenge | Oxford Economics

[9] How the UK planning system works – 12 key points | Brodies LLP

[10] 153. National Planning Policy Framework – 13. Protecting Green Belt land – Guidance – GOV.UK

[11] Criteria Document 2024

[12] Statement of common ground – GOV.UK