NTT London LON3: 24MW High-Density Dagenham AI Campus
Status: Active / Under Heavy Structural Construction (Tracking June 2026) | Location: Yew Tree Ave, Dagenham RM10 7FZ, United Kingdom
Project Overview
The NTT London LON3 Data Center Campus represents one of the most significant next-generation digital infrastructure developments underway in the United Kingdom, strategically located in the Dagenham area of East London to expand NTT’s extensive portfolio of premium colocation and hyperscale facilities beyond the increasingly constrained availability zones of central and West London. Purpose-built from the ground up to accommodate the rapidly escalating demands of artificial intelligence training, machine learning inference, deep learning applications, high-performance computing, and hyperscale cloud platforms, LON3 is being engineered with a highly optimized, high-density architecture capable of supporting substantial power loads, advanced cooling systems, and future-ready computing environments. As of mid-2026, construction is progressing rapidly through major structural framing activities, core building envelope installation, and the integration of primary electrical, fiber, and utility infrastructure, positioning the campus as a critical new digital hub for the London metropolitan region. The development offers a strategic advantage by avoiding the severe power availability and grid capacity constraints affecting traditional data center clusters in areas such as Slough and other West London corridors, where increasing demand has created significant deployment challenges. Designed to meet rigorous international standards for physical security, operational resilience, and sustainability, the campus incorporates advanced environmental controls, energy-efficient technologies, and compliance measures aligned with stringent UK green building regulations and corporate ESG objectives. Once operational, LON3 will provide global hyperscalers, cloud service providers, financial institutions, and enterprise customers with highly secure, scalable, and low-latency connectivity to central London’s digital ecosystem, enabling seamless interconnection, enhanced business continuity, and long-term support for the continued growth of data-intensive technologies across the UK and Europe.
Quick Facts
| Field | Value |
|---|
| Project Name | NTT London LON3: 24MW High-Density Dagenham AI Campus |
| Location | Yew Tree Ave, Dagenham RM10 7FZ, United Kingdom |
| Status | Active / Under Heavy Structural Construction (Tracking June 2026) |
| Commissioning | Phase 1 initial server hall handovers scheduled for H1 2027 |
| Total IT Load | ~18.0 MW net critical operational compute capacity |
| Total Capacity | 24.0 Megawatts (24 MW) gross ultimate utility power envelope |
| Tier Level | Tier III Compliant (Concurrently maintainable topology) |
| Project Type | Greenfield Hyperscale AI-Ready & Premium Colocation Facility |
City Profile
| Header | Details |
|---|
| City Name | london |
| Population | 8.9 Million |
| Urban Agglomeration | 9.8 to 11.4 million |
| City GDP | £110.8 billion in 2023 |
| Per Capita Income | £69,077 in 2023 |
| City Tier | Tier 1 |
| Key Strengths | Global Financial Hub; Dense Connectivity; Low Latency to Europe and North America; large skilled talent pool. |
Companies Involved
| Header | Details |
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| Developer / Operator | NTT Global Data Centers |
| Strategic Infrastructure Partner | Barking and Dagenham London Borough Council |
| Construction Contractor | Leading UK Mission-Critical General EPC Contractors |
| MEP Engineering | NTT Global Global Design & Mission-Critical Infrastructure Division |
| Network Connectivity | Carrier-neutral ecosystem utilizing multiple physically isolated subterranean fiber entries directly linked into the primary London inner-ring backbones |
| Power Infrastructure | UK Power Networks Regional Grid (Dedicated 132kV on-site high-voltage substation) |
Technical Specifications
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| Power Capacity | 24 MW gross utility capacity delivered via fully redundant, dedicated on-site transformer blocks |
| UPS Redundancy | $2N$ block-redundant static solid-state UPS configurations integrated with specialized low-maintenance lithium-ion energy storage arrays |
| Cooling System | Next-generation closed-loop chilled water arrays combined with customizable direct-to-chip liquid loops to support densities past 50 kW per enclosure |
| Connectivity | 4 physically isolated, concrete-hardened subterranean network entry vaults ensuring absolute fiber routing and carrier diversity |
| PUE Target | $\le 1.20$ design-optimized annualized operating efficiency under maximum, continuous computing loads |
| Energy Mix | 100% matched with clean, renewable energy sources backed by verified UK green power purchase agreements |
Milestones
| Header | Details |
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| Announcement | Finalized site planning permissions and master 24MW grid allocations approved |
| Construction Start | Earthmoving, structural foundation piling, and substation civils commenced |
| Phase 1 Go-Live | Projected H1 2027 (Initial data hall handover and baseline infrastructure validation) |
| Full Buildout | Continuous modular data hall expansion scaling sequentially across the campus footprint through 2029 |
Investment Details
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| Total Investment | £220 Million GBP estimated total capital deployment profile across the asset construction lifecycle |
| Funding | Direct corporate capital funding from NTT Group, supplemented by global green infrastructure credit pools |