evenEco Commercial
Commercial EPC & MEES · England & Wales

Commercial EPC & MEES, worked out for the people who have to act on it.

One place for the rules, the free tools, and a data-backed picture of exactly where your buildings stand.

Three in four commercial buildings in England and Wales sit below EPC B. 44,159 are already F or G, unlettable without a registered exemption, now, not on some future deadline. A further 74,738 are over 1,000 m² and below B, the group the 2031 standard is aimed at. Together, that is 115,948 properties with a live problem.

Written by the people who do the work, and built on all 998,164 commercial certificates on the public register.

Where the commercial stock sits

998,164 unique properties, current band

Below EPC B759,913 (76.1%)
Below EPC E – unlettable44,159
Over 1,000 m² and below B74,738
Certificates expired200,604 (20.1%)
Break it down by local authority →
76.1%
of commercial stock below EPC B
74,738
over 1,000 m² and below B – the 2031 cohort
44,159
rated F or G – unlettable without an exemption
998,164
unique commercial properties analysed

Why the advice you've had so far hasn't been much use

Survey quality on commercial EPCs varies enormously. Some assessors know the building type; a lot don't – and it shows up as unknown constructions, untested inputs, and cautious defaults standing in for evidence nobody supplied.

What comes back is usually a generic measures list, not a plan – pulled from a database rather than sequenced against your lease events, your plant's actual condition, or what you could realistically do at the next void.

And none of it accounts for what's actually happening in the building day to day: ageing M&E, plant failures, comfort complaints. Those are the problems your tenants feel first, long before a rating changes – which is why this isn't only a landlord problem. Poor data and generic recommendations leave occupiers living with the operational fallout while owners carry the compliance risk.

What changed in 2026, and what it means for you

Two of the three dates the industry has been planning around no longer exist.

Dropped

EPC C by 2027

The interim standard has been withdrawn. Budgets and service-charge consultations built around it are built on a requirement that will not arrive.

Announced

EPC B by 2031 – over 1,000 m² only

Targeted rather than universal. Smaller buildings stay at the E minimum, so the first question is your floor area, not your band.

In force since 2023

EPC E, including existing leases

The 2023 change caught buildings already let, mid-term, with no transaction to trigger it. It is the rule most often missed, and the one that already applies to you.

Read the full MEES guide →

The two groups already exposed

Not every commercial building has a problem – but two clear groups do. Counting the 2,949 that fall into both only once, that is 115,948 properties.

Unlettable now

44,159 rated F or G

Below the standard that has applied since April 2023. Letting them without a registered exemption is already unlawful – this is not a future deadline.

29,533 of these have an expired certificate too: a public failing rating, no current evidence to the contrary, and usually a building still in occupation.

Check your position →
Exposed by 2031

74,738 over 1,000 m² and below B

The cohort the 2031 standard is aimed at. Five years sounds distant; it is roughly one lease cycle, and most routes to B depend on a void or a plant replacement you cannot schedule at will.

The real deadline is the last lease event before 2031 at which the work can practically be done.

Work back from your dates →

Start with what your certificate assumed

The cheapest lever on most commercial buildings is not a contractor.

A non-domestic EPC is a model, not a measurement. Where an assessor could not see a construction and nobody produced the paperwork, the conventions require a cautious default – an uninsulated wall of unknown build-up, an untested air permeability figure, no credit for controls that were never demonstrated.

Those defaults are frequently wrong, and they are wrong in a specific, fixable way.

Evidence can replace an assumption without any work being done to the building. A wall that was always insulated but recorded as unknown is a paperwork problem, and paperwork is very much cheaper than insulation.

How to tell which of your inputs were assumed →

Three kinds of input

InputEstablished howFixable without works?
Air permeabilityAssumedYes – if a test certificate exists
Wall constructionAssumedYes – with the refurbishment record
Controls strategyAssumedYes – with BMS documentation
GlazingObservedSometimes
Floor areaMeasuredNo – already real

Illustrative pattern from the sample plan. See it in full →

A commercial Upgrade Plan, in full

Eleven sections on one building – worked through end to end so you can see the method before you buy anything.

See the sample plan

The points gap to EPC B. Every measure tested against the seven-year rule that decides whether the law compels it. Sequenced against real lease events. Who pays, under the actual lease terms. And an honest verdict that no exemption is available.

Build my Upgrade Plan – £49 Open the sample first

Common questions

What is the minimum EPC rating for a commercial property?

E. Since 1 April 2023 it has been unlawful to continue letting a non-domestic property in England and Wales rated F or G without a registered exemption.

Is EPC C by 2027 still coming?

No. That interim requirement has been dropped. The next standard is EPC B in 2031, and it applies only to buildings over 1,000 m².

How do I find my commercial EPC?

Search the register free by postcode with our EPC lookup. No sign-up, no email.

Can my rating improve without doing building work?

Often, yes. Much of a non-domestic rating rests on defaults recorded because no evidence was supplied on the day of the survey. Supplying it replaces the assumption with the real value. How that works.

What are the penalties?

Up to £150,000 per property – 20% of rateable value at the upper tier – plus publication of the breach on a public register.

Turn the certificate you already have into a plan – £49

We find your certificate on the register first. You only pay if we find it.

  • Eleven sections on your building, not a template
  • Every measure tested against the seven-year rule that decides whether the law compels it
  • Sequenced against your lease events, and an honest verdict on whether an exemption applies
  • Credited against the assessment fee if you go on to commission one
Build my Upgrade Plan See a sample
Written and reviewed by the evenEco assessment team Last updated Figures from the GOV.UK Energy Performance of Buildings Register, non-domestic extract for England & Wales, analysed 11 September 2026 How we produce this

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