MEES 2027: What the Minimum Energy Efficiency Standards Mean for CRE Brokers

The Minimum Energy Efficiency Standards (MEES) are already a live compliance issue for commercial landlords — and the stakes increase significantly in April 2027. CRE brokers who cannot advise clients accurately on EPC obligations risk deals falling through and, more seriously, clients incurring civil penalties.

This article covers the current position, what changes in 2027, and how to build MEES checks into your standard workflow.

The current position

Since April 2023, it has been unlawful for landlords to continue to let commercial premises with an EPC rating of F or G — not just to grant a new lease. This applies to most commercial non-domestic buildings in England and Wales that are required to have an EPC.

Penalties are substantial: up to £150,000 for breaches lasting more than three months, with the penalty record published on the PRS Exemptions Register.

Despite this, MEES compliance is uneven. Many smaller commercial buildings remain non-compliant, either because landlords are unaware, because they have registered a questionable exemption, or because enforcement by local authorities has been inconsistent.

What changes in April 2027

The government has confirmed that the minimum standard for commercial properties will rise from EPC E to EPC C as part of a phased tightening:

• April 2027 — EPC C required for new commercial lettings (and continuing tenancies, including renewals under the Landlord and Tenant Act 1954)
• April 2030 — EPC B required across the board

The 2027 deadline is significant because it affects lease renewals as well as new lettings. A landlord with a tenant exercising a statutory renewal right will need to demonstrate compliance or register a valid exemption before the new lease can be granted.

Exemptions

The MEES framework includes registered exemptions that allow a landlord to let a non-compliant building lawfully for a five-year period. The main exemptions for commercial property are:

All improvements made — the landlord has carried out all cost-effective improvements recommended in the EPC, and the rating is still below the minimum. Requires evidence that the recommended measures have been implemented.

Third-party consent refused — a required improvement cannot be carried out because the tenant, planning authority, or building freeholder refused consent.

Temporary exemption — applies for six months after a property is acquired (e.g., on purchase or from a mortgagee) while the new owner assesses the property.

High cost — an exemption if the cost of reaching the minimum standard exceeds the regulatory cost cap. This is a derogation from the general requirement, not a permanent exemption.

All exemptions must be registered on the government's PRS Exemptions Register. An unregistered exemption is not valid.

Implications for CRE brokers

On lettings — before marketing a commercial property for letting, check whether it has a valid EPC and what the rating is. If the EPC is below the applicable minimum (currently E, rising to C in 2027), advise the landlord client on the options: improvement works, exemption registration, or the risk of proceeding unlawfully.

On acquisitions — when advising a buyer or investor, flag MEES compliance as a due diligence item. A portfolio with multiple sub-standard EPCs carries real capital expenditure risk.

On rent reviews and lease renewals — where a lease is being renewed under the 1954 Act, confirm EPC compliance before the new lease terms are agreed.

On investment advice — properties with poor EPCs are increasingly difficult to finance. Many lenders now apply a haircut or refuse to lend on F/G-rated commercial assets. Advising investor clients to ignore EPC ratings is increasingly untenable.

Where AI helps

AI can assist with:

• Checking whether an existing EPC rating meets the current or upcoming threshold
• Summarising the recommended improvement measures from an EPC report
• Identifying whether an exemption applies and what documentation is needed
• Drafting client advisory notes on MEES compliance obligations

AI cannot produce a new EPC (this requires an accredited assessor) or determine whether a specific improvement measure is cost-effective (this involves a surveyor's judgment).

Practical workflow

For every commercial letting instruction, add a MEES check to your standard checklist:

1. Request the current EPC certificate and check the rating and expiry date
2. Confirm whether the rating meets the current minimum (E) and, if the lease will run past April 2027, the upcoming minimum (C)
3. If non-compliant, identify which recommended measures from the EPC have been carried out and whether an exemption applies
4. Document your advice to the client in writing

The regulatory direction of travel is clear: energy efficiency requirements for commercial property will tighten further. Clients who begin improvement works now, rather than waiting for enforcement, will be better placed commercially and financially.