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.
Whole building or demise
Where an office building is in single occupation and served by common plant, a whole-building certificate is normal. Where floors or suites are designed for separate letting, each demise typically requires its own EPC, apportioned against the central services that serve it.
Servicing complexity
Fan-coil, VRF and VAV systems, heat recovery ventilation and central chillers usually push an office assessment to Level 4, and atria or mixed-mode strategies can require Level 5 dynamic modelling. Getting this classification right at quotation stage avoids re-work.
Improving an office rating
LED relamping with presence and daylight control, upgraded BMS control strategies, and replacing gas or direct electric heating with heat pumps are the measures that most reliably move bands in offices.
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.