The European Union’s revision of the Energy Performance of Buildings Directive (EPBD) introduces a landmark shift in regulatory focus. While energy efficiency remains a cornerstone, the updated directive now mandates Indoor Environmental Quality (IEQ) as a legal requirement. This includes parameters such as temperature, humidity, ventilation rates, and air purity, reflecting a broader commitment to occupant health and well-being.

The scope of technical building systems has been expanded to encompass not only traditional Heating, Ventilation, and Air Conditioning (HVAC) components but also renewable energy sources, energy storage, and building automation. These changes aim to foster smarter, more sustainable buildings that balance energy performance with environmental comfort. Inspections will now assess both energy systems and IEQ, with stricter intervals based on building size and capacity.

By integrating IEQ into the EPBD, the EU signals a more holistic approach to sustainability. The directive encourages innovation in building design and technology, promoting digitalisation and low-emission solutions. This evolution positions energy efficiency not as an isolated goal, but as part of a wider framework that prioritises human-centric, climate-resilient architecture.

_{Image source: ausnviro.com.au}