Correspondence
Building regulations: updated notices of approval for calculation methodologies: circular letter
Methodologies of calculation of the energy performance of new buildings to demonstrate compliance with the Building Regulations 2010 in England, and the methodologies for expressing the energy performance of buildings in England and Wales.
Applies to England
Documents
Details
The purpose of this circular letter is to draw attention to the publication of the following:
- updated Notice of approval of the methodologies of calculation of the energy performance of new buildings to demonstrate compliance with the Building Regulations 2010 in England
- updated Notice of approval of the methodologies for expressing the energy performance of buildings in England and Wales
The new notices of approval supersede the existing versions and come into effect on 17 March 2025. Please see the circular for full details.
Updates to this page
Published 17 March 2025