Request EPC Assessment Data Sharing

At the time of writing the methodology for EPC assessments of existing dwellings is RDSAP 9.94. The much anticipated RDSAP 10 update is due in Q1 2025 and a significant methodology overhaul from RDSAP to the Home Energy Model (HEM) is proposed for 2026.

In the past, it would have techinically been against the law for an energy assessor to provide you with any data that they had collected during the assessment for your Energy Performance Certificate.

This data includes the information entered into the system in order for the EPC rating to be calculated, plus photos taken in order to fulfil the auditing requirements of the accreditation scheme, plus any floorplans or site notes that were created.

Fortunately, things have recently changed, and as from the 24th June 2024, an energy assessor can now release this information on request to the building owner, occupier, or landlord (referred to as the "authorised person"). Data may also be shared with a third party, provided the authorised person gives explicit
consent.

Before releasing any data, energy assessors must be confident of the status of the person making the request, and the assessor must complete a form to notify their accreditation scheme of the request. That form however is quite quick to complete.

There is some information that must be redatcted from any data, before being shared, but this is limited to Green Deal information, names of any individuals (including those on any documents including energy bills etc.) and any information related to excluded buildings e.g. Ministry of Defence buildings.

Energy assessors are allowed to charge a fee for the data sharing to cover the administrative burden.

Interestingly though, the guidance I've read advises that Energy Assessors are not actually obligated to share the data.

If you wish to read the exact wording of the changes to the legislation, visit the following URL:

https://www.legislation.gov.uk/uksi/2024/640/made

Notice that the wording in the legislation provides: "The keeper of the register, an accreditation scheme or an energy assessor may disclose assessment data...." so if your energy assessor is not willing to provide the data, then it might be possible to directly approach the accreditation scheme that they are a memebr of, to ask for the data instead.

If you are particularly interested in your EPC rating, or assessment, or want to research or check the entries made as part of the assessment, then requesting this data might be useful for you.

Click here to return to our 'Improve Your EPC' main page, and see if there is another way you could improve your EPC rating.