11 March 2026

UK Net Zero Carbon Buildings Standard unveiled

The standard is backed by building data and science-led modelling.

A model of buildings and clean energy components
© PanuShot

The release follows 'unprecedented collaboration within the UK built environment industry'.

It is a free-to-access technical standard that will enable the built environment to robustly prove that built assets are playing their part to decarbonise in line with the UK’s carbon and energy budgets.

Until this point, there has been no single, agreed methodology for defining what net-zero carbon means for buildings in the UK.

This voluntary standard provides a set of consistent rules to create a level playing field around the meaning of net-zero carbon.

Version 1 builds on the pilot released in September 2024, and contains the technical 
details on how a building should meet the standard, including what limits and targets it needs to meet, the technical evidence needed to demonstrate this, how it should be reported, how it must be verified, and the ways its verified status can be communicated.

Katie Clemence-Jackson, CEO of UK Net Zero Carbon Buildings Standard, says
'The standard will provide much-needed clarity and consistency to net-zero carbon claims, combating greenwashing, and providing a robust definition for the industry to rally towards.

'Version 1 incorporates the feedback from our pilot testing programme, plus new Annexes that further support its implementation, all of which will make it easier and clearer to target and implement the standard.'

Verification will become available in Q2 of 2026. Once it is launched, it will be possible to appoint a verifier and go through the process to be able to robustly say that a building is net-zero carbon aligned.

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