Introduction
Commercial Energy Performance Certificate (EPC) ratings are an important factor that can influence buyer decisions when selling property at auction. Investors and occupiers increasingly assess energy performance alongside price, location and development potential, particularly due to tightening energy efficiency regulations affecting commercial buildings.
Understanding your EPC obligations — and presenting the information clearly to bidders — can improve buyer confidence and reduce transaction risk.
Providing a Commercial Energy Performance Certificate
An EPC provides information about the energy efficiency of a building and estimates likely energy running costs. It is a legal requirement for sellers to obtain and make an EPC available before marketing most commercial property for sale or rent.
When selling at auction, a copy of the EPC should be included within the legal pack so that prospective bidders can review the rating before committing to purchase.
A commercial EPC is normally valid for 10 years from the date of issue, unless significant alterations have been made to the building that would affect its energy performance.
1. When an EPC may not be required
Certain commercial properties are exempt from EPC requirements, including:
- Buildings with a total useful floor area under 50 square metres (subject to conditions)
- Temporary buildings intended for use for less than two years
- Places of worship
- Agricultural buildings with low energy demand
- Buildings scheduled for demolition (where evidence is provided)
- Some listed buildings where compliance would unacceptably alter character
However, sellers should always obtain professional advice before assuming an exemption applies.
2. Understanding commercial EPC ratings
Commercial EPC ratings range from:
A (most energy efficient)
to
G (least energy efficient)
Newer buildings or recently refurbished premises generally achieve higher ratings due to modern construction standards and improved mechanical systems.
For auction buyers — particularly investors — EPC ratings are not just informational. They directly affect:
- Future lettability
- Compliance costs
- Financing availability
- Asset value
- Exit strategy
As a result, poor ratings may reduce bidding interest or influence price expectations.
3. Minimum Energy Efficiency Standards (MEES) — Critical for buyers
One of the most important regulatory considerations today is the Minimum Energy Efficiency Standards (MEES) framework.
Under current regulations in England and Wales:
- Commercial properties generally require a minimum EPC rating of E to be legally let.
- Landlords cannot grant new leases or continue existing lettings on properties rated F or G, unless an exemption is registered.
Future government targets are expected to tighten standards further, with proposals suggesting minimum ratings of C by 2027 and B by 2030 for many commercial properties (subject to consultation and implementation).
For auction purchasers, this creates potential capital expenditure risk where upgrades may be required.
For sellers, providing clarity on EPC compliance can strengthen buyer confidence.
4. Improving your EPC before auction
Improving an EPC rating before marketing can sometimes increase sale value and broaden the buyer pool.
Common improvement measures include:
- Upgrading lighting systems to LED
- Improving insulation
- Installing modern heating or cooling systems
- Enhancing glazing efficiency
- Renewable energy technologies (solar panels, heat pumps)
- Smart energy controls
Even modest upgrades may move a property into a more favourable rating band.
5. Preparing for the EPC assessment
To ensure an accurate and cost-effective EPC assessment:
- Provide building plans if available
- Allow full access to plant rooms and service areas
- Ensure heating and cooling systems are operational
- Remove temporary heating equipment where possible
- Provide maintenance records if available
Good preparation can reduce survey time and prevent conservative assumptions that may lower the rating.
6. Commercial EPC complexity compared to domestic EPCs
Commercial buildings vary significantly in design, layout and usage, making EPC assessments more complex than residential certificates.
The assessor will evaluate:
- Construction materials
- Insulation levels
- Heating and cooling systems
- Ventilation and air handling
- Lighting efficiency
- Building orientation
- Internal zoning and usage patterns
Large or complex buildings may require several weeks to assess and produce documentation.
Why EPC Information Matters in Auctions
Auction buyers commit immediately once the hammer falls, so uncertainty creates risk.
Providing a clear EPC within the legal pack allows bidders to:
- Understand compliance obligations
- Assess future upgrade costs
- Evaluate investment returns
- Secure financing more easily
Transparent information often results in stronger bidding competition.
Summary
Providing a valid EPC is a legal requirement when selling most commercial property at auction and plays an increasingly important role in buyer decision-making. Energy performance ratings now influence investment value, regulatory compliance and long-term costs.
Understanding MEES regulations and presenting clear EPC information can reduce uncertainty for bidders and improve the chances of a successful sale. Where feasible, improving a building’s energy performance before auction may enhance marketability and attract greater buyer interest.