What is a Commercial EPC

Learn all about what a commercial energy performance certificate (EPC) is and why businesses need one. We'll tell you how to obtain your certificate quickly and easily.
floor plans for evaluation the SAP process for SAP Calculations

Discover the energy efficiency of your building with a Commercial Energy Performance Certificate (EPC). With an easy-to-understand A to G rating, you’ll see just how efficient your building is compared to others of the same type and even newly built ones. 

Plus, get a handy Recommendations Report on ways to boost your energy efficiency. While there’s no obligation to implement the recommendations, they’re a great starting point to save energy and reduce costs.

Should all commercial buildings get a Commercial EPC?

There are exceptions to the current EPC requirements and proposed changes. Exemptions include:

  • Leases shorter than 6 months or longer than 99 years are exempt.
  • Buildings where improving energy efficiency would negatively impact the value by over 5% or take longer than 7 years to recoup the cost are exempt.
  • Tenant consent is required for improvement measures.
  • If all improvement measures have already been made but the building still can’t meet the target, it is exempt.

What are the benefits of having a Commercial EPC?

The benefits of having a Commercial EPC includes:

  • Enhancing energy efficiency
  • Saving money
  • Reducing your company’s carbon footprint

Compliance with government legislation is ensured, proving your commitment to meeting the minimum energy efficiency standard (MEES). Don’t risk illegal renting – secure an EPC with at least an E rating to avoid penalties and benefit from valuable improvement recommendations.

How much does a Commercial EPC cost?

The cost of your Commercial EPC depends on the type and complexity of your building, as well as the quality of information available. If you have current layout drawings (record plans), you’re in luck – your assessment will be less costly. 

Older buildings without these drawings may require more resources. Building size is also a factor, but keep in mind that comparing a large warehouse to an office or retail space is apples to oranges. The survey, data entry, modeling, and calculation times can vary greatly due to the unique characteristics of commercial buildings.

Creating the necessary information for the calculation is a complex and time-consuming process. Even the simplest of buildings can cost several hundred pounds to produce an EPC. But with our expertise and access to all areas of the property, we’ll make sure the job gets done efficiently and accurately.

Is my property exempt from needing an EPC?

Please note that the current exemptions for EPC certificates still apply. These exemptions include:

  • Listed or officially protected buildings that would be unacceptably altered by conforming to MEES requirements
  • Temporary buildings used for 2 years or less
  • Detached buildings with a total floor space under 50m2
  • Buildings due to be demolished by the seller or landlord with all necessary planning and building consents
  • Vacant buildings that are due to be sold or rented out, suitable for demolition and redevelopment, or have a buyer or tenant applying for planning permission to demolish it.

What is the validity period for a Commercial EPC? 

A Commercial EPC is valid for ten years and can be used multiple times within this period. However, after ten years it will expire. If you’re planning to sell or rent your property at this time, you’ll need to produce a new EPC that is valid for the next ten years.

Maximize the value of your energy-efficient property. Before selling, consider obtaining a new EPC to showcase your energy-saving upgrades and attract buyers. Don’t let your hard work go unnoticed – always confirm the improvements you’ve made and make your property even more marketable.

Which factors include the calculation of the Commercial EPC report

As we delve into multiple property attributes to provide you with essential insights. Here’s what our analysis includes regarding the factors which affect the calculation:

  • Date built
  • Property dimensions, including average floor-to-ceiling heights
  • Wall and roof construction, including any areas with alternative construction
  • Detailed examination of openings, such as windows and doors, and their age
  • Evaluation of windows and double-glazed elements
  • In-depth assessment of the heating system, including type and fuel used
  • Boiler details, including manufacturer, model, and ID number
  • Examination of heating controls, such as room stats and programmer
  • Analysis of the water heating system, including capacity and insulation for the hot water cylinder, if applicable
  • Assessment of electricity and gas meter types
  • Consideration of the type of lights used
  • Inclusion of aerial views from Google Maps or equivalent platforms
  • An appropriate and comprehensive method statement
  • Extensive data collection forms, down to individual envelope level
  • Thorough site notes, including floor plans, zoning methodology, and full HVAC details
  • Comprehensive set of dated images, along with site notes, to support all data entry for the SBEM model
  • Proper utilization of the EPC audit information section
  • Audit checking procedure to ensure accuracy and reliability

Uncover vital information and make informed decisions with our meticulously conducted Commercial EPC report.

What’s the lowest EPC Rating Commercial Properties Can Get?

EPC ratings range from A to G, with A being the most energy-efficient and G being the least. Previously, non-residential properties had to have at least an E rating to grant new leases. But starting from April 1, 2023, all commercial properties must have a minimum EPC rating of E or higher.

This means landlords with properties that have F or G EPC ratings can’t lease them to commercial tenants unless they make improvements to reach the required rating. Landlords must implement all possible cost-effective energy efficiency measures to comply with MEES regulations.

Looking to improve your Commercial EPC rating?

It’s a legal requirement for all non-exempt commercial buildings to achieve a minimum rating of E. But that’s not the only reason to aim for a better score. Improving your EPC rating can also increase your property’s value. 

Potential buyers and tenants look to EPCs to gauge a building’s energy performance. And since tenants often foot the bill for energy, an energy-efficient building is a huge plus. If you’re unsure about how to boost your EPC rating, you’re not alone. Many property owners could benefit from more information on this topic.


Did you know that inefficient lighting is a major culprit behind CO2 emissions and low EPC ratings? It’s true. Many shops, offices, and warehouses struggle with inadequate natural light, leading to excessive electricity consumption for lighting purposes. But fear not, because there are sustainable solutions to this problem.

By making the switch to LED lighting systems, you can slash lighting costs by a whopping 50%. That’s not all. Incorporating lighting controls like occupancy sensing and daylight harvesting lights can further prevent the wastage of light energy during the day and in unused spaces.


Boost your rating by up to 15 points with proper insulation. But not all insulation is created equal. It needs to be professional and thick, with the recommended depth for roof insulation being 270mm. 

Consider cavity wall insulation if you have solid brick or metal-clad properties. And don’t forget, insulation also helps reduce noise pollution.


Discover the power of double glazing in enhancing your commercial EPC rating. Not only does high-quality double glazing offer remarkable heat retention, but it also guarantees a significant positive impact on your property’s energy performance certificate. 

Say goodbye to inefficient windows and hello to a more energy-efficient and eco-friendly space.

Renewable Energy

Upgrade your commercial EPC with renewable energy sources. Harness the power of solar panels, biomass, geothermal heat, and wind turbines to boost your energy rating. Commercial properties consume energy consistently, aligning perfectly with the abundant supply of renewable energy during the day.

Which buildings don’t need a Commercial EPC?

These types of buildings are exempt from requiring a Commercial EPC with just a few simple criteria:

  • Listed or officially protected buildings that would be negatively impacted by meeting energy performance requirements
  • Temporary buildings with a usage period of two years or less
  • Buildings used for religious activities or worship
  • Industrial sites, workshops, or non-residential agricultural buildings with low energy usage
  • Detached buildings with a total floor space under 50 square metres
  • Buildings scheduled for demolition by the seller or landlord, with all necessary planning and conservation consents

Additionally, a building is exempt if it meets the following conditions:

  • It is due to be sold or rented out with vacant possession
  • It is suitable for demolition and the site can be redeveloped
  • The buyer or tenant has applied for planning permission to demolish it

How much time does a Commercial EPC assessment take?

When it comes to EPC assessments, one of the main contrasts lies in the time they take. Domestic EPC assessments are quick and don’t demand extensive and detailed checks. Domestic EPC takes an hour on average. 

However, commercial EPCs undergo a more rigorous process and take two hours or more on average. Assessors for commercial EPCs often possess higher technical qualifications than their counterparts in domestic EPC checks. Furthermore, the actual process itself is much lengthier.

What happens if you don’t get a certificate?

Failure to obtain a commercial EPC could result in a fine ranging from £500 to £5000. This fine is usually 12.5% of the property’s rateable value, with a default value of £750 if the rateable value cannot be calculated. The fine is capped at £5000.

You can begin marketing the commercial building once you have booked your EPC assessment, even if you haven’t received the certificate yet. Proof of your booking is enough. Act now to get your Commercial EPC today!

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