What Are Minimum Energy Efficiency Standards (MEES)?
Minimum Energy Efficiency Standards (MEES) are UK regulations that set the minimum energy performance level required for privately rented properties.
They apply to both domestic and non-domestic (commercial) rented buildings in England and Wales.
MEES were introduced under the Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015, with later amendments strengthening the requirements over time.
What Do MEES Mean for Landlords?
Under MEES, most rental properties must have an Energy Performance Certificate (EPC) rating of at least E before they can be legally let.
This means:
Properties rated F or G cannot normally be rented out
Landlords must carry out improvements where required (or register a valid exemption)
The EPC must be valid and in date when the property is let
These rules apply to both domestic and commercial rental properties, although the details and exemptions can vary depending on the type of building.
Why Were MEES Introduced?
MEES were introduced to help:
Improve the energy efficiency of rental properties
Reduce carbon emissions
Lower energy bills for tenants
Drive improvements in older, less efficient buildings
They form part of the UK Government’s wider strategy to improve building energy performance and meet climate targets.
Are There Any Exemptions?
Yes. In some cases, landlords may not need to meet the minimum EPC rating immediately if an exemption applies.
Common exemptions may include:
Where improvements are not cost-effective under the “cost cap” rules
Where required works would significantly devalue the property
Where all reasonable improvements have been made, but the rating still cannot be improved above F or G
Certain short-term or specific property types (case dependent)
Any exemption must be properly registered on the official PRS Exemptions Register.
What Happens If a Property Does Not Comply?
If a property is let in breach of MEES regulations, enforcement action may be taken by the local authority.
This can include financial penalties and requirements to carry out improvements or register valid exemptions.
How Does This Relate to an EPC?
An EPC rating is central to MEES compliance. The EPC provides the official energy rating (A–G) used to determine whether a property meets the minimum standard.
Without a valid EPC, landlords cannot demonstrate compliance with MEES requirements.
How A1 Home Inspectors Can Help
At A1 Home Inspectors, we provide professional EPC assessments that help landlords and property owners understand their current energy rating and obligations under MEES regulations.
We aim to make the process:
Clear and easy to understand
Fully compliant with current legislation
Straightforward and efficient to arrange
Helpful for both domestic and commercial landlords
If you are unsure about your MEES obligations or EPC rating, we are happy to advise and assist.

