London III Data Center: 56MW West London AI Factory
Status: Under Construction / Phased Expansion (April 2026) | Location: Digital Park, Crawley, UK
Project Overview
As of April 2026, London III is undergoing a substantial 56MW expansion, positioning it as a flagship “AI Factory” for the UK market and a cornerstone of next-generation digital infrastructure. Technically, the facility is being upgraded to support ultra-high-density rack configurations of up to 100kW per rack, enabling it to efficiently run advanced AI hardware such as NVIDIA Blackwell and NVIDIA Vera Rubin systems. This level of density reflects the growing demand for accelerated computing environments capable of handling large-scale AI training and inference workloads. Strategically located in the Crawley digital corridor, London III offers a critical alternative to the increasingly power-constrained Slough market, ensuring scalability for enterprise and hyperscale clients. The expansion also emphasizes sustainability and regulatory compliance, featuring a closed-loop cooling system engineered to operate with zero water consumption an essential factor in meeting modern UK planning and environmental standards. Fully integrated into PlatformDIGITAL, the facility provides seamless, low-latency connectivity to London’s financial district and key cloud on-ramps. This integration enhances data mobility, interconnection, and hybrid IT capabilities, reinforcing London III’s role as a vital hub for AI-driven innovation and digital transformation across the United Kingdom and beyond.
Quick Facts
| Field | Value |
|---|
| Project Name | London III Data Center: 56MW West London AI Factory |
| Location | Digital Park, Crawley, UK |
| Status | Under Construction / Phased Expansion (April 2026) |
| Commissioning | Phase 1 Expansion Online: Q1 2027 |
| Total IT Load | 56.0 MW (Total Campus Capacity) |
| Total Capacity | ~25,000 m² of high-density whitespace |
| Tier Level | Tier III+ (AI Inference & Training Ready) |
| Project Type | AI-Ready Hyperscale Campus |
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 |
|---|
| Developer / Operator | Digital Realty |
| Strategic Infrastructure Partner | West London Digital Park / PlatformDIGITAL®. |
| Construction Contractor | Digital Realty GDC / Mercury Engineering. |
| MEP Engineering | $N+1$ Block Redundant Power; Liquid cooling manifolds. |
| Network Connectivity | 100+ Carriers; Low-latency fiber to Slough and City of London. |
| Power Infrastructure | 56 MW; New on-site high-voltage substation (2026). |
Technical Specifications
| Header | Details |
|---|
| Power Capacity | 56.0 MW |
| UPS Redundancy | $N+1$ |
| Cooling System | Non-evaporative Closed-Loop (Zero Water Use). |
| Connectivity | Core AI training and inference node for the London metro. |
| PUE Target | < 1.25 |
| Energy Mix | 100% Renewable Matching (REGO-backed). |
Milestones
| Header | Details |
|---|
| Announcement | N/A (Expansion Update) |
| Construction Start | 2025 |
| Phase 1 Go-Live | Q1 2027 |
| Full Buildout | 2028 |
Investment Details
| Header | Details |
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| Total Investment | Part of a multi-billion pound UK infrastructure commitment. |
| Funding | Undisclosed (Estimated £400M+ for expansion). |