How a major Belgian contractor is integrating Checkinatwork with a physical turnstile at a massive construction site in Anderlecht — and how this tackles illegal subcontracting and cuts administrative costs
47,000 attendance reports last month. If you had to do all that manually—it would be an impossible task.Catherine Gerard — Checkin@work Manager, BPC Group
At the massive CityDox construction site in Anderlecht, everything operates on a grand scale. Dozens of subcontractors, hundreds of workers, and a constant daily flow of people and equipment coming and going. On construction sites with a budget exceeding half a million euros, registering attendance with the RSZ is legally required via Checkinatwork. BPC opted for an approach that goes beyond the minimum legal requirements: a physical turnstile linked to AllConnects’ Checkinatwork platform—visible, verifiable, and automatic.
The legal context: Checkinatwork is not optional
Since the introduction of legislation on attendance tracking in the construction industry, Checkinatwork has been mandatory at all construction sites with a contract value exceeding €500,000. Every contractor and subcontractor must report their employees’ attendance to the RSZ in real time. The goal is to combat illegal subcontracting and address undeclared work in the construction sector in a systematic manner.
At a construction site the size of CityDox, we’re not talking about a few dozen check-ins a day. We’re talking about thousands of check-ins a month—from workers of all nationalities, across multiple subcontracting levels.
BPC's approach: turnstile + Checkinatwork as a single system
What sets BPC apart from a basic implementation is its integration with a physical turnstile at the site gate. It’s not just about digital registration—it’s also about physical verification. When an employee arrives, they scan their badge, and the system checks in real time whether all data has been correctly submitted to the RSZ; only then does the turnstile open.
Green light = access
Only those who are properly registered with the RSZ will be granted physical access to the construction site.
Badge scan at the gate
Employees scan their badges. The platform automatically validates the data in real time.
Automatic Social Security reporting
Every check-in is immediately forwarded to the RSZ as an attendance record.
Physical access control
The turnstile makes digital access control tangible: anyone who doesn't meet the requirements simply won't be allowed in.
The power of this combination: digital Checkinatwork registration and physical access control reinforce each other. The system is not just an administrative compliance tool—it serves as a visible reminder on-site that the rules are being enforced.
A scale that is impossible to achieve manually
The figures from CityDox speak for themselves. In the month prior to the report, 47,000 attendance reports were submitted to the RSZ via the platform.
What BPC Achieves with Checkinatwork
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Legal compliance without manual effort 47,000 records per month are automatically submitted correctly to the RSZ — no human error, no missed reports.
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Barrier to illegal subcontracting Anyone who is not properly registered with the RSZ will simply be denied access at the turnstile. This significantly raises the barrier to fraud.
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Immediate savings on administrative costs The larger the construction site, the higher the ROI. On a project like CityDox, the investment in the system pays for itself quickly.
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Media coverage on Kanaal Z Kanaal Z highlighted BPC’s approach as a best practice in attendance tracking at large Belgian construction sites.
