UKNC: Residential (HQM) / HQM ONE / B My Home / 6 Materials /

6.2 Environmental Impact of Materials

Information correct as of 5thJuly 2025. Please see kb.breeam.com for the latest compliance information.

Foundation route – Identical blocks of flats - KBCN1565

For an assessment that is covering two, or more, identical blocks of flats, which share the same dimensions, flat types and design, the same “HQM Environmental Impacts of Construction Products” LCA excel file can be used for the identical blocks of flats. In the case where an assessor thinks that two blocks of flats are not identical but similar enough to be considered identical for the purposes of the LCA part of “HQM Environmental Impacts of Construction Products” excel tool, please send a technical query via the webform explaining why the blocks should be considered identical.

HQM Life Cycle Assessment – Methodology update - KBCN1743

From 6 July 2025, all HQM assessments (beta, ONE & V6) have the option to apply the new BREEAM UK New Construction: Residential (UKNCR) V6.1, Issue 6.2 LCA methodology. UKNCR V6.1 updated issue ‘6.2 Environmental Impact of Materials’ by: Please refer to issue 6.2 in the UKNCR V6.1 technical manual for full details of the updated methodology. Please refer to the HQM Life Cycle Assessment – methodology update for further details on how to apply the UKNCR Issue 6.2 LCA methodology, and how this applies to each of the HQM scheme versions. Please be aware that applying the UKNCR issue 6.2 LCA methodology will not change your HQM registration or certificate.  
Information correct as of 5thJuly 2025. Please see kb.breeam.com for the latest compliance information.