Commercial EPC Basics

If you're new to Commercial Energy Performance Certificates (EPCs), this section explains the fundamentals. Learn what a Commercial EPC is, who needs one, how long it remains valid and how the assessment process works. Whether you're a landlord, property owner, commercial agent or tenant, these answers will help you understand your responsibilities and avoid unnecessary delays during a sale, letting or lease renewal.

Commercial EPC Basics, Everything You Need to Know

What is a Commercial EPC?

A Commercial Energy Performance Certificate (EPC) is an official document that measures the energy efficiency of a non-domestic building. The certificate provides a rating from A (most efficient) to G (least efficient) and includes a Recommendation Report outlining potential improvements that could increase the building's energy performance. Commercial EPCs are required for most commercial properties when they are sold, rented or newly constructed. The certificate helps prospective buyers and tenants understand how efficiently a building uses energy and whether improvements may be needed in the future. The assessment considers factors such as the building's construction, insulation, heating systems, cooling systems, ventilation, lighting and glazing. Once completed, the certificate is lodged on the national EPC register and remains valid for ten years. Think of a Commercial EPC as an energy health check for your building. It provides a standardised way of comparing commercial properties and has become increasingly important due to Minimum Energy Efficiency Standards (MEES) regulations.

What is a Commercial EPC?

A Commercial Energy Performance Certificate (EPC) is an official document that measures the energy efficiency of a non-domestic building. The certificate provides a rating from A (most efficient) to G (least efficient) and includes a Recommendation Report outlining potential improvements that could increase the building's energy performance. Commercial EPCs are required for most commercial properties when they are sold, rented or newly constructed. The certificate helps prospective buyers and tenants understand how efficiently a building uses energy and whether improvements may be needed in the future. The assessment considers factors such as the building's construction, insulation, heating systems, cooling systems, ventilation, lighting and glazing. Once completed, the certificate is lodged on the national EPC register and remains valid for ten years. Think of a Commercial EPC as an energy health check for your building. It provides a standardised way of comparing commercial properties and has become increasingly important due to Minimum Energy Efficiency Standards (MEES) regulations.

Do I Need a Commercial EPC?

In most cases, yes. A Commercial EPC is required whenever a commercial property is sold, rented, newly constructed or subject to certain lease transactions. The regulations apply to many different types of commercial premises, including offices, shops, warehouses, industrial units, medical facilities, educational buildings and mixed-use developments. Most landlords and property owners first encounter EPC requirements when marketing a building for sale or letting. However, EPC compliance can also become important during lease renewals, refinancing arrangements and property portfolio reviews. There are some exemptions for specific building types and circumstances, but these are less common than many people assume. If you are unsure whether your property requires an EPC, obtaining professional advice before marketing the building can help avoid delays and compliance issues later.

Do I Need a Commercial EPC?

In most cases, yes. A Commercial EPC is required whenever a commercial property is sold, rented, newly constructed or subject to certain lease transactions. The regulations apply to many different types of commercial premises, including offices, shops, warehouses, industrial units, medical facilities, educational buildings and mixed-use developments. Most landlords and property owners first encounter EPC requirements when marketing a building for sale or letting. However, EPC compliance can also become important during lease renewals, refinancing arrangements and property portfolio reviews. There are some exemptions for specific building types and circumstances, but these are less common than many people assume. If you are unsure whether your property requires an EPC, obtaining professional advice before marketing the building can help avoid delays and compliance issues later.

How long is a commercial EPC valid for?

A Commercial EPC remains valid for 10 years from the date it is lodged on the national register. During this period, the certificate can usually be reused for future sales, lettings and lease renewals, provided no significant changes have been made to the building that would materially affect its energy performance. Many property owners are surprised to discover that an EPC already exists for their building. Before commissioning a new assessment, it is often worth checking the national EPC register to see whether a valid certificate is already in place. Once an EPC expires, a new assessment will normally be required before the property can be sold, let or remarketed. Checking expiry dates early can help prevent last-minute delays when a transaction is already underway.

How long is a commercial EPC valid for?

A Commercial EPC remains valid for 10 years from the date it is lodged on the national register. During this period, the certificate can usually be reused for future sales, lettings and lease renewals, provided no significant changes have been made to the building that would materially affect its energy performance. Many property owners are surprised to discover that an EPC already exists for their building. Before commissioning a new assessment, it is often worth checking the national EPC register to see whether a valid certificate is already in place. Once an EPC expires, a new assessment will normally be required before the property can be sold, let or remarketed. Checking expiry dates early can help prevent last-minute delays when a transaction is already underway.

Who Can Issue a Commercial EPC Certificate?

Only an accredited Non-Domestic Energy Assessor (NDEA) can produce and lodge a valid Commercial EPC. The assessor must belong to an approved accreditation scheme and use government-approved software to calculate the building's energy performance rating. During the assessment, information is collected about the building's size, construction, heating systems, cooling systems, ventilation and lighting before the certificate is generated. When choosing an assessor, it is worth confirming that they are properly accredited and experienced with your type of property. Assessing a small retail unit is very different from assessing a warehouse, office block, medical centre or industrial facility. Many property owners choose to work directly with an accredited assessor rather than through a lead-generation company or broker. This often results in clearer communication, faster turnaround times and a smoother assessment process.

Who Can Issue a Commercial EPC Certificate?

Only an accredited Non-Domestic Energy Assessor (NDEA) can produce and lodge a valid Commercial EPC. The assessor must belong to an approved accreditation scheme and use government-approved software to calculate the building's energy performance rating. During the assessment, information is collected about the building's size, construction, heating systems, cooling systems, ventilation and lighting before the certificate is generated. When choosing an assessor, it is worth confirming that they are properly accredited and experienced with your type of property. Assessing a small retail unit is very different from assessing a warehouse, office block, medical centre or industrial facility. Many property owners choose to work directly with an accredited assessor rather than through a lead-generation company or broker. This often results in clearer communication, faster turnaround times and a smoother assessment process.

How do I apply for a commercial EPC certificate?

Obtaining a Commercial EPC is usually a straightforward process. The first step is to contact an accredited Non-Domestic Energy Assessor and request a quotation. Once the instruction is confirmed, a site survey will be arranged at a convenient time. During the assessment, the surveyor will inspect the building, collect measurements and record details about the construction, heating, cooling, lighting and ventilation systems. This information is then entered into approved software to calculate the EPC rating. After the calculations have been completed, the certificate and Recommendation Report are lodged on the national register and issued electronically. Most assessments can be arranged and completed within a few working days, although larger and more complex buildings may require additional survey time.

How do I apply for a commercial EPC certificate?

Obtaining a Commercial EPC is usually a straightforward process. The first step is to contact an accredited Non-Domestic Energy Assessor and request a quotation. Once the instruction is confirmed, a site survey will be arranged at a convenient time. During the assessment, the surveyor will inspect the building, collect measurements and record details about the construction, heating, cooling, lighting and ventilation systems. This information is then entered into approved software to calculate the EPC rating. After the calculations have been completed, the certificate and Recommendation Report are lodged on the national register and issued electronically. Most assessments can be arranged and completed within a few working days, although larger and more complex buildings may require additional survey time.

Where can I get a commercial EPC for my property?

A Commercial EPC can only be obtained through an accredited Non-Domestic Energy Assessor. Many property owners begin by searching online for terms such as "Commercial EPC near me", "Commercial EPC assessor" or "Commercial EPC for commercial property". While there are numerous companies offering EPC services, it is important to ensure that the assessment is being carried out by a qualified and accredited professional. When comparing providers, it is worth considering: Accreditation status Experience with similar building types Turnaround times Fixed pricing Geographic coverage Direct access to the assessor At Certus Commercial, we provide Commercial EPC assessments for offices, retail units, warehouses, industrial buildings and other commercial properties throughout Brighton, Sussex and the South East. If you're unsure what type of assessment you require, we're always happy to provide guidance before you book.

Where can I get a commercial EPC for my property?

A Commercial EPC can only be obtained through an accredited Non-Domestic Energy Assessor. Many property owners begin by searching online for terms such as "Commercial EPC near me", "Commercial EPC assessor" or "Commercial EPC for commercial property". While there are numerous companies offering EPC services, it is important to ensure that the assessment is being carried out by a qualified and accredited professional. When comparing providers, it is worth considering: Accreditation status Experience with similar building types Turnaround times Fixed pricing Geographic coverage Direct access to the assessor At Certus Commercial, we provide Commercial EPC assessments for offices, retail units, warehouses, industrial buildings and other commercial properties throughout Brighton, Sussex and the South East. If you're unsure what type of assessment you require, we're always happy to provide guidance before you book.

Further Resources

Official UK Government EPC Register

Official government guidance on EPC regulations

Accreditation body and industry guidance

Further Resources

Official UK Government EPC Register

Official government guidance on EPC regulations

Accreditation body and industry guidance

If you can't find a valid certificate on the EPC register, our accredited Non-Domestic Energy Assessors can provide a fast commercial EPC assessment across Brighton, Sussex and the South East.