The Welsh Government is seeking views on plans to improve energy efficiency standards in new and existing homes and buildings.
Learn more about the consultation >
Status: Consultation closes on 17 November 2025
The consultation refers to the impacts of changes to Building Regulations Part L (conservation of fuel and power). This also includes changes to:
- Part F (Ventilation), and
- Part O (Overheating) of the Building Regulations, and
- associated Approved Document guidance
If you would like further guidance, please contact the ECA Technical Team who are happy to provide support and input into your responses:
Contact the Technical Team