Data4 MIL02 Vittuone: Environmental Rejection Leaves Delivery Uncertain

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Proposed campus · Vittuone, Lombardy, Italy · Research reviewed October 21, 2026

Data4’s planned MIL02 campus faces a negative environmental compatibility decision, leaving its delivery schedule uncertain. The proposed development is separate from the company’s existing MIL01 campus in Cornaredo. The operator describes MIL02 as AI-ready, but no customer, installed accelerator fleet or operating AI workload has been verified. Data4 campus information, AI-ready development announcement

What Has Changed?

Il Giorno reported on October 16 that Italy’s environment ministry had rejected the project following environmental and landscape concerns. An indexed official outcome notice identifies decree DM_2026-0000622, dated October 9. The full decree was not accessible in this review; its detailed conditions and any appeal or revised application remain unverified. A rejected environmental assessment is not proof that Data4 has permanently canceled the development. Il Giorno report

Scale and Financial Scope

Data4’s June 2024 announcement described a development costing more than €500 million. That was a project estimate, not paid expenditure or proof of fully committed financing. The operator markets 100 MW of campus capacity without establishing an IT-load measurement basis. Neither figure should be treated as delivered capacity or current spending. Earlier reporting described a 15 MW IT first phase targeted for 2027; that historical timetable has not been reaffirmed following the rejection. Company announcement, DCD’s April 2024 report

Companies and Next Checkpoint

Data4 is a Brookfield-backed private platform. Brookfield’s annual information form discloses a 19% effective platform interest for Brookfield Infrastructure Partners; that does not establish MIL02-specific ownership or funding. Brookfield ownership filing

The decisive next evidence is the full rejection instrument and any subsequent appeal or revised application. Municipal records describe the proposed grid route, but do not establish an energized connection. Construction commencement, named tenants, exact power basis and actual project expenditure remain unverified. Vanzago’s project-specific observations

Published October 21, 2026. Exact campus pin unverified; no map marker is shown. AI-assisted source-based reporting; no original interview or site visit claimed.