Note: This is a general guide for UK commercial property owners and professionals. Non-domestic EPC regulations, registers and processes differ across England & Wales, Scotland and Northern Ireland. Always check the current position on GOV.UK and the relevant national register before acting on any specific matter.
Ten years, with caveats
A non-domestic EPC is valid for ten years from the date of lodgement on the register. It does not expire on a change of ownership, and there is no obligation to renew it mid-term simply because works have been carried out — although a new assessment is usually worth commissioning after significant plant or fabric upgrades.
Why owners renew early
Where a building has been re-serviced — LED relamping, new boilers or heat pumps, improved controls, added insulation — the lodged certificate understates current performance. A fresh assessment can move the band, which matters for MEES compliance and for tenant due diligence.
Certificates lodged under earlier software versions also model differently from current versions, so a re-assessment can produce a different rating even where nothing physical has changed.
Portfolio tracking
Across a portfolio, expiry dates cluster. Building a renewal schedule two to three years ahead avoids a wave of urgent instructions colliding with lease events.
Next steps
If you'd like specific advice about a property or portfolio, request a quote and our in-house assessors will come back to you.