Robustly verify to the UK Net Zero Carbon Buildings Standard
You can now register buildings, landlord spaces, and tenancies with the UK Net Zero Carbon Buildings Standard, as the first step toward verification.
Verification has not yet opened, so registered buildings are not yet able to be verified. Verification will open in late June.
Registration has now opened!
About UK NZCBS Verification
Verification is coming at the end of Q2, 2026
Net Zero Carbon Aligned buildings require independent third-party verification.
A verifier must review the building’s evidence to check for conformity.
The verification framework and methodology are currently being developed.
Download the Verification Primer to learn more about what to expect from Verification.
The UK Net Zero Carbon Buildings Standard has partnered with Bureau Veritas to develop the verification framework, and they will become the Verification Administrator once verification becomes available.
The Verification Process
Verifying a building, landlord space or tenancy to become Net Zero Carbon Aligned involves 6 key steps
Register
Confirm the intent to verify and submit key details about the building and claimant
Outcome
Receive the outcome of the claim
Collate
Collate the building's evidence base to prepare for verification
Communicate
Net Zero Carbon Aligned buildings appear on our website
Submit
Appoint a verifier and submit the collated evidence to them for verification
Re-verify
Continue to verify each year to maintain alignment
Registration is now open, but it isn’t possible to appoint a verifier yet. Read the verification primer for more information.
The Verification Framework
The organisation chart on the left shows the framework of organisations / entities that will play a part in the verification of buildings to meet the Standard. More detail on each role is provided in our Verification Primer, alongside further details about how verification will work.
Appointing a Verification Administrator
We are currently in the final stages of appointing Bureau Veritas as the Standard’s Verification Administrator (VA) . Following the launch of Verification, the VA will run and maintain the Standard’s verification process, including developing a verifier training and accreditation scheme that will open up verification services to the wider industry.
Bureau Veritas will carry out the initial verifications “in-house”, up until the training scheme is available. As part of this work, we have defined the competencies a verifier will need, including around whole life carbon assessment. These competencies are available within Section 6.3 of the Standard.
About Registration
Registration of a building, landlord spaces or tenancy confirms the intent to verify to the UK Net Zero Carbon Buildings Standard. It is the necessary first step for a verifier to be appointed.
NOTE: While buildings can now be registered, they cannot be verified until verification opens, expected late June 2026.
Registration Resources
Information Sheet
Explains the who, what, why and how of registering a building.
Fee Sheet (Registration)
Sets out the Standard's registration fees.
Registration Agreement
The agreement a claimant must read and sign to register a building, landlord spaces, or tenancy.
Ready to Register?
We have announced the intention to introduce UK NZCBS Performance Evaluations alongside verification when it launches at the end of Q2 2026.
Performance Evaluations will enable buildings to verify performance against the Standard’s requirements, even if they are not meeting all of them.
Key details of Performance Evaluations:
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Evaluate in-use, measured outcomes
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A “report card”, not Net Zero Carbon Aligned
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Shows pass/fail for each requirement
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Same depth of process and verification, different outcome
