About Us
Independent technical partner for BACS compliance and building automation in Flanders.

Natan Naert
Managing Director & Energy Expert (Type D)
Who We Are?
Gebouwbeheersysteem.be is an initiative of Orzo BV and was founded to guide companies in Flanders with the obligation regarding Building Automation and Control Systems (BACS).
From December 31, 2025, non-residential buildings with heating capacity or cooling capacity > 290 kW must have a compliant building automation system. From 2029, this threshold will be lowered to 70 kW.
We help companies translate these regulations into concrete and achievable technical solutions — without over-investment, with focus on energy savings.
Our Expertise
Regulatory Knowledge
Thorough knowledge of Flemish BACS obligation, EN ISO 52120-1 class B, and energy performance regulations.
HVAC Expertise
Technical knowledge of heating, cooling and ventilation systems, control strategies and system integration.
Energy Analysis
Data-driven approach to energy optimization, efficiency detection and consumption monitoring.
Independent
No ties with installers or suppliers. We advise objectively in your best interest.
Why Gebouwbeheersysteem.be?
- We are not a traditional installer — we are technical advisors
- Our focus is on compliance and energy performance
- We think along about phased investments and ROI
- Complete independence in supplier choice
- Experience with complex HVAC configurations
Ready to get started?
Contact us for a no-obligation conversation about your BACS obligation.
Get in touch