Dieter, people talk about “workforce compliance” all the time. What does it actually mean on a data centre build?
When we talk about workforce compliance, we mean something very practical. It is the set of controls that proves every person and every company on site is legally entitled to be there, correctly engaged, and properly documented.
That starts well before anyone turns up at the gate and it continues throughout the build. In practice, it covers right-to-work and immigration status, posted worker requirements, tax and social security evidence such as A1s, safety certifications like VCA, and the due diligence of subcontractors across all tiers. Most importantly, it is about being inspection-ready at any moment, not scrambling after the fact.
Why has this moved from a back-office issue to something that can stop a project?
Because enforcement has changed. Across Europe, labour compliance is no longer handled quietly through correspondence. Authorities now turn up on site, often in joint teams, and they expect to see clear evidence immediately.
Large data centre projects are particularly visible. They involve deep subcontracting chains and a high proportion of foreign or posted labour. That makes them natural inspection targets. When something is missing or unclear, the impact is no longer just a fine. It can be restricted access, halted work or loss of confidence from regulators and insurers. At that point, compliance becomes a delivery risk.
What is really at stake for owners, developers and Tier-1 contractors?
Three things stand out.
First, schedule certainty. If workers are not cleared properly, they cannot access site. That quickly turns into lost days and lost momentum.
Second, reputation and trust. Regulators, local authorities, investors and communities all expect visible and defensible controls. Saying you are compliant is no longer enough.
Third, chain liability. In several European jurisdictions, problems at lower tiers can escalate upwards. Wage issues, posting failures or misclassification do not stay neatly contained with a subcontractor. They travel up the chain to the party with visibility and financial substance.
Many contractors say they manage workforce compliance themselves. Why is that often not enough on hyperscale programmes?
It is rarely about effort or intent. The issue is incentives and role conflict.
When the same organisation is responsible for delivering the programme and assuring compliance, problems tend to be treated as sequencing issues rather than risk signals. Escalation can be delayed because no one wants to slow the job. From an authority’s perspective, self-assessment also carries less credibility.
An owner-side or independent workforce compliance function changes that dynamic. It separates compliance control from construction execution and aligns decisions with enterprise risk.
What does “good” workforce compliance actually look like on site?
You can feel it in how the site operates.
There is clear pre-mobilisation mapping of contractors, worker types, nationalities and legal bases to work. There is a single onboarding workflow with defined evidence requirements. Gatekeeping works consistently, meaning no valid evidence equals no access, but without chaos at the turnstiles.
Ongoing monitoring is just as important. Expiries are tracked, anomalies are corrected quickly, and audits are routine rather than reactive. When authorities arrive, documentation is available, current and coherent.
