MEES Guidance – Minimum Energy Efficiency Standards

Understanding the impact of MEES

The Minimum Energy Efficiency Standards (MEES) require privately rented non-domestic properties to meet minimum energy performance requirements in England and Wales.

In June 2026, the government published an update on strengthening MEES requirements for large buildings:

  • Private rented buildings over 1,000 square metres in England and Wales will need to reach EPC B by 2031, where cost effective
  • Private rented buildings below 1,000 square metres will continue to need EPC E
  • The previously proposed interim EPC C milestone for 2027 will not be taken forward
  • Existing exemption criteria will remain in place, including the “seven-year payback” test

Read our latest guide for more information

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