The Welsh Government are consulting on changes to building regulations, which cover the consideration of ventilation and overheating. The review of the Building Regulations Part L:2025 (conservation of fuel and power), includes changes to Part F (Ventilation) - which covers noise from ventilation equipment and open windows, and Part O (overheating), which covers ventilation and external noise impacts. Notable in updates to Part O are proposals that regulations cover loft conversions and new windows and doors in flats.
The consultation is open until November 27th.
Building Regulations Part L: 2025 review | GOV.WALES
