Guidance

Energy Performance of Buildings Certificates in England and Wales: technical notes

Technical notes to accompany the Energy Performance of Buildings Certificates statistics.

• From: Ministry of Housing, Communities and Local Government and Department for Levelling Up, Housing and Communities
• Published: 17 May 2022
• Last updated: 30 July 2026
  Show all updates

  1. 30 July 2026

     Updated with additional processing for de-duplicating the new dwellings EPC data.

  2. 31 July 2025

     Updated section 3.1 to include the new de-duplication step in the data cleaning process.

  3. 24 April 2025

     Details of new data cleaning methods were provided.

  4. 26 October 2023

     Added data dictionary and related statistics sections. In line with new Office for Statistics Regulation (OSR) policy, all mentions of 'Experimental Statistics' have been changed to 'Official Statistics in Development'.

  5. 17 May 2022

     First published.

Applies to England and Wales

Documents

Energy Performance of Buildings Certificates in England and Wales: technical notes

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Details

These technical notes provide information on:

• official statistics status
• data collection
• methodology
• data quality
• definitions
• revisions policy
• other information