Data4 Milan Data Center Campus: 270MW AI Digital Hub
Status: Operational (MIL01 Phase 1–DC09) / Active Construction & Expansion (MIL01 expansion & MIL02) | Location: Cornaredo (MIL01: Via Monzoro, 101-105) & Vittuone (MIL02: Via Giovanni Pascoli), Metropolitan City of Milan, Italy
Project Overview
Data4’s Milan Campus is one of the largest and most advanced digital infrastructure developments in Italy and Southern Europe, strategically spanning 28 hectares across two interconnected sites in Cornaredo (MIL01) and Vittuone (MIL02). Upon full completion, the mega-campus is planned to deliver an impressive 270 MW of total critical IT capacity across 18 purpose-built data center modules, providing one of the region’s most scalable platforms for hyperscale cloud providers, multinational enterprises, public sector organisations, and artificial intelligence (AI) applications. Located approximately 15 km west of central Milan, the campus benefits from excellent access to major transportation corridors and Italy’s primary fibre backbone networks, enabling low-latency connectivity across domestic and international markets. Designed as a carrier-neutral ecosystem, the campus offers customers flexible interconnection with multiple telecommunications providers, direct access to leading public cloud platforms, and seamless support for hybrid and multi-cloud deployments. Engineered to meet the growing requirements of next-generation digital infrastructure, the facilities incorporate AI-ready high-density liquid cooling technologies capable of supporting power-intensive GPU clusters, machine learning platforms, and high-performance computing (HPC) environments while maintaining high levels of energy efficiency and operational reliability. Sustainability is embedded throughout the campus design, with modern power distribution, energy-efficient cooling systems, and infrastructure developed to support long-term environmental objectives alongside scalable digital growth. Combined with enterprise-grade physical security, resilient utility infrastructure, advanced connectivity, and flexible expansion capabilities, Data4’s Milan Campus provides a future-ready foundation for mission-critical workloads and strengthens Milan’s position as one of Europe’s leading hubs for cloud, AI, and hyperscale digital infrastructure.
Quick Facts
| Field | Value |
|---|
| Project Name | Data4 Milan Data Center Campus: 270MW AI Digital Hub |
| Location | Cornaredo (MIL01: Via Monzoro, 101-105) & Vittuone (MIL02: Via Giovanni Pascoli), Metropolitan City of Milan, Italy |
| Status | Operational (MIL01 Phase 1–DC09) / Active Construction & Expansion (MIL01 expansion & MIL02) |
| Commissioning | MIL01 First Phase Go-Live: 2014 / MIL02 Construction: 2025–2028+ |
| Total IT Load | ~180 MW Critical IT Load (270 MW Total Grid / Gross Facility Capacity) |
| Total Capacity | 270 MW Total Power Capacity across 28 Hectares (MIL01: 170 MW across 14 Data Centers / MIL02: 100 MW across 4 Data Centers) |
| Tier Level | Tier III Equivalent Design & Facility (ISO 27001, ISO 14001, ISO 50001, ISO 45001, PCI-DSS Certified) |
| Project Type | Purpose-Built Greenfield Hyperscale, Enterprise Colocation & AI-Ready Campus Hub |
City Profile
| Header | Details |
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| City Name | Milan |
| Population | ~1.4 million |
| Urban Agglomeration | ~3.2 million |
| City GDP | ~USD 220–240 billion |
| Per Capita Income | ~USD 60,000–65,000 |
| City Tier | Alpha Global City |
| Key Strengths | Global financial and fashion capital |
Companies Involved
| Header | Details |
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| Developer / Operator | Data4 Infrastructure |
| Strategic Infrastructure Partner | Unareti (Regional Electricity Distributor), Terna (Italian Transmission Grid), & Lombardy Regional Authority |
| Construction Contractor | Specialized European Mission-Critical Contractors & General Engineering Firms |
| MEP Engineering | Data4 Technical & Facilities Engineering Teams |
| Network Connectivity | Dual geodiverse underground fiber vaults; carrier-neutral access to 40+ carriers and direct links to MIX (Milan Internet eXchange) and major regional fiber backbones. |
| Power Infrastructure | High-voltage dedicated substations connected directly to the national grid (Terna/Unareti), dual 2N utility power feeds, 2N static modular UPS systems, and N+1 / 2N backup diesel generators with on-site fuel reserve. |
Technical Specifications
| Header | Details |
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| Power Capacity | 170 MW (MIL01 Campus) + 100 MW (MIL02 Campus) = 270 MW Total Capacity |
| UPS Redundancy | 2N / N+1 Static Uninterruptible Power Supply (UPS) Configuration |
| Cooling System | Closed-loop chilled water systems, eco-mode air-side economizers, hot/cold aisle containment, and high-density liquid-to-chip cooling infrastructure for AI workloads. |
| Connectivity | Carrier-neutral platform with 2 Meet-Me-Rooms (MMRs) per building, dark fiber cross-connects, and low-latency access to major European connectivity corridors. |
| PUE Target | < 1.30 Operational Design PUE |
| Energy Mix | 100% Certified Renewable Energy with sustainability features including heat reuse initiatives and circular waste management. |
Milestones
| Header | Details |
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| Announcement | 2013 (Initial MIL01 Expansion) / 2024 (MIL02 Campus Master Plan) |
| Construction Start | 2014 (MIL01) / 2025 (MIL02) |
| Phase 1 Go-Live | 2014 (MIL01 Initial Phase) / 2024 (MIL01 DC09 Launch) |
| Full Buildout | 2028–2030 (Completion of all 18 Data Center Buildings across MIL01 & MIL02) |
Investment Details
| Header | Details |
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| Total Investment | €2.0 Billion (Total Planned Cumulative Capital Expenditure for Data4 Italy Expansion) |
| Funding | Data4 Group corporate investment backed by Brookfield Asset Management |