How Long Is a Commercial EPC Valid? (And When You Need a New One)
- A commercial EPC is valid for 10 years from the date it is lodged.
- You don't have to renew it every time you let or sell within that period, as long as it is still valid and reflects the building.
- A valid EPC is required to build, sell or let. If the certificate has expired, you will usually need a new one for the next transaction.
- MEES can make renewing early worthwhile: an old, marginal E may no longer represent the building, and the minimum is set to rise.
The simple answer is ten years. But "how long is it valid" is rarely the real question. What people actually want to know is: do I need a new one before I sell or let, does an old certificate still count, and could a lapsed EPC land me in trouble under MEES? Here's the full picture, so an expired or marginal certificate doesn't catch you out at the worst moment.
How long a commercial EPC lasts
A non-domestic EPC is valid for ten years from the date it is lodged on the register. During that decade it can be used for multiple transactions: you don't need a fresh certificate for every new tenant or every sale, provided the existing one is still valid and still reflects the building.
You can check when any EPC was lodged, and when it expires, on the government's Find an energy certificate service.
When you actually need a new one
The ten-year rule has a few important "buts". You'll generally need a new EPC when:
- The existing one has expired. A certificate from more than ten years ago is no longer valid for a sale or new letting.
- There's no EPC at all, and you're building, selling or letting. The requirement comes from the Energy Performance of Buildings Regulations 2012.
- The building has changed materially, for example after a significant fit-out, extension or change of use, so the old rating no longer represents it.
- You've made improvements and want a new, better rating on record, which is often the point of doing the works in the first place.
Does an expired EPC make letting unlawful?
This is where people get confused, so it's worth being precise. An expired EPC doesn't automatically make an ongoing tenancy unlawful on its own. But you cannot market a sale or a new letting without a valid EPC, and under MEES you must be able to show the property meets the minimum standard to keep letting it.
In practice, if your certificate has lapsed and you want to let, sell or demonstrate compliance, you need a current one. Relying on a long-expired rating is a gap that tends to surface at exactly the wrong time, mid-transaction, when it can hold up a deal.
How to check what you already have
Before commissioning anything, look the property up on Find an energy certificate. You can search by postcode and see the rating, the lodge date and the expiry. It's the quickest way to answer "do I even need a new one?" and it's free.
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What if there is more than one EPC?
Buildings sometimes have several EPCs over the years, and units within a larger building can each have their own. The one that counts is the most recent valid certificate for the relevant space. If you're unsure which EPC applies to the part of the building you're letting or selling, an assessor can clarify it, because getting the wrong one attached to a transaction causes avoidable delay.
Why MEES changes the timing calculation
Validity is a legal minimum, not a strategy. Two MEES realities make early renewal worth considering. First, an EPC lodged years ago may show an E that the building would no longer achieve, or a rating that's now marginal. Second, the minimum is rising: the government has confirmed that from 2031, larger commercial buildings will need to reach EPC B where cost-effective.
If you're planning improvements anyway, commissioning a fresh EPC to capture them, and to give you an accurate current baseline, is often smarter than waiting for the old one to run out.
Getting a new EPC when you need one
When you do need a fresh certificate, it's a job for an accredited non-domestic energy assessor. ComSurv matches you with accredited assessors who cover your area and building type, so you can compare no-obligation quotes and get it lodged in good time.
Sources & further reading
- Find an energy certificate (GOV.UK) — check whether a valid EPC already exists and when it expires
- The Energy Performance of Buildings (England and Wales) Regulations 2012 — the rules requiring an EPC on construction, sale and let
- Non-domestic private rented property: minimum energy efficiency standard (GOV.UK) — how the rating interacts with MEES
External links open in a new tab. ComSurv is a matching service, not a firm of surveyors, and is not affiliated with these organisations. This article is general information, not legal, surveying or valuation advice; take advice on your specific situation.
