If you own or manage a rented property in England or Wales – domestic or commercial – the Minimum Energy Efficiency Standards (MEES) set the minimum energy rating that property has to meet before it can legally be let. Falling short isn’t just a compliance technicality: it can mean a legal inability to rent the property out at all, alongside a real financial penalty.
In this blog you’ll learn:
- What MEES actually is, and which properties it applies to
- The current minimum rating you need to meet
- What happens if you don’t comply
- Which properties are currently exempt
- Where MEES is heading next
What Are the Minimum Energy Efficiency Standards?
The Minimum Energy Efficiency Standards (MEES) is a government scheme that sets a minimum Energy Performance Certificate (EPC) rating a rented property must meet before it can be let. It applies separately to domestic (residential) and non-domestic (commercial) properties, with different thresholds and enforcement details for each – but the underlying principle is the same: no valid EPC at or above the minimum rating, no legal letting.
What’s the Current Minimum EPC Rating?
The current minimum is EPC E, for both domestic and non-domestic properties. This has been in force since 2018 for new lets, and since 2020 (domestic) or 2023 (commercial existing leases) for all tenancies – so at this point, virtually every rented property in England and Wales needs to meet it, not just newly let ones.
Who Does MEES Apply To?
MEES applies to any domestic or non-domestic property being let under a tenancy in England or Wales. It covers new lets and, since the dates above, existing tenancies too – so a rating that was compliant when a lease started can still need attention if the property was let before MEES applied to existing tenancies. For non-domestic properties specifically, see our guide to what a commercial EPC actually measures and how it’s calculated.
What Happens if You Don’t Comply?
Non-compliance carries real financial penalties, and they differ by property type:
- Domestic properties: penalties are currently capped at £5,000 in total.
- Commercial properties: penalties can reach up to £150,000 per breach, based on the property’s rateable value.
Under the confirmed MEES 2030 roadmap, domestic penalties are rising substantially – see the MEES 2030 post for the full detail.
Are Any Properties Exempt?
A small number of properties are currently exempt from MEES, including listed buildings – though this is changing. The blanket listed-building exemption is being phased out under the 2030 reforms, with a much narrower “Negative Impact” exemption replacing it for cases where retrofit would genuinely damage a building’s structural integrity or character.
Where is MEES Heading Next?
MEES isn’t static – both the domestic and commercial thresholds are confirmed to rise significantly over the next few years, alongside a new multi-metric EPC system replacing the single A–G rating. See our MEES 2030 guide for the full confirmed roadmap – dates, cost caps and what it means for your portfolio:
If you already know you’re facing a gap to close, a Decarbonisation Feasibility Study can turn that into a concrete plan – the service specifically includes a MEES Compliance Report option, giving commercial landlords a costed, fabric-first route to their target rating rather than a guess at what might work.
What’s Next?
Whether you’re confirming where your property stands today or planning ahead for the confirmed 2030/2031 thresholds, understanding your current position is the first step.
We carry out Commercial and Domestic EPC assessments, and can advise on where your property currently sits against MEES.
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