What’s a Display Energy Certificate (DEC) and am I complying with the latest legislation?
The Government’s current guide on Display Energy Certificates was published by The Department for
Communities and Local Government (DCLG) back in August 2015.
Link below for the Display Energy Certificate Guide
A guide to display energy certificates and advisory reports for public buildings_DEC_Guidance_August 2015
Receive your FREE Quotation:
instant quote
What is a Display Energy Certificate?
The DEC is very useful for benchmarking purposes as you can visually compare the previous three years energy consumption from the DEC. Some of our Clients use the DECs for identifying ‘Energy Conversation Opportunities’ within their property portfolios / estates. This enables them to identify which properties they can priorities on implementing energy efficiency measures and calculate the most cost effective solutions for reducing energy consumption.

Buildings that need a Display Energy Certificate
It is also required for an institution providing a public service that are traditionally provided by Central or Local Government, or are traditionally funded by the taxpayer in England and Wales, with a total floor area (gross internal floor area) exceeding 250m² (metre squared). DECs are required to inform how energy efficient a public building is in comparison to similar types. This benchmarking comparison is based on the energy consumptions over the past twelve months. Display Energy Certificates can only be produced by an accredited Energy Assessor and the valid certificate must be displayed no smaller than A3 in a prominent place (i.e. main entrance / reception) clearly visible to members of the public.
The building must also have in its possession or control a valid advisory report (i.e. at the main reception desk). The advisory report contains recommendations for improving the energy performance of the building. DECs must be produced for each of the buildings captured under his Regulation.
Fines can be issued for failing to display a valid DEC and failing to have a valid advisory report.
Commercial property owners may also commission a voluntary Display Energy Certificate and Advisory Report and is a route to ESOS compliance as an alternative to energy audits.
What about a DEC for Public Authority buildings?
Even if the building is partially occupied by a public authority (e.g. Local Council, Leisure centre, College, NHS trust) a DEC will be required under the Regulations.
Do the DEC Regulations apply to General Practice & Dental Surgeries?
Yes. As general practice (GP) & dental practices are in receipt of public funds and provide a public service to large numbers of people who visit regularly, GP & dental premises are included in the definition of a public building.
Who is responsible for arranging the DEC?
Validity period of Display Energy Certificates
accompanying advisory report is valid for seven years. Where the building has a total useful floor area of
between 250m² and 1,000m², the DEC and advisory report are valid for 10 years.
| Floor Area (m²) | Validity of DEC | Validity of advisory report |
|---|---|---|
| >1,000 | 1year | 7years |
| >250 or below <1,000 | 10years | 10years |
Why act now?
The fines are based on the following non-compliance issues under the legislation:
- Failure to display a valid DEC in a prominent place clearly visible to the public £500 per offence.
- Failure to have in possession or control a valid advisory report £1,000 per offence.
- The penalty for failing to produce the relevant documentation to an authorised enforcement officer when required is £200. In addition to these penalties, it will still be necessary to commission the documents; otherwise further offences will be committed. The DECs must be lodged on the Government database and Trading Standards can check remotely whether a building has a DEC or advisory report in place, this enables the Enforcement Officer to check whether a public building is compliant with the legislation.
Our DEC service process:
| New Display Energy Certificate and Advisory Report | |
|---|---|
| 1 | Obtain relevant documentation from the Client and review before carrying out the site visit. |
| 2 | Site visit. |
| 3 | Process / validate 12 months energy utility invoices or energy data supplied by the client. |
| 4 | Input data into Government approved ‘ORCalc software’ to generate a compliant DEC. |
| 5 | Production of Advisory Report if required. |
| 6 | Lodge the DEC & AR via our accreditation body to the official Government database. |
| 7 | Deliver the DEC & AR in agreed format to the client. |
DEC information required
- Full address and postcode of the property
- Full energy data you have available for Gas, Electricity and Oil (all that are applicable) for at least the past 12 months.
- Details of any energy produced on site, such as photovoltaics (PV) meter readings or credit invoices.
- Full scaled plans / layout drawings with measurements of the building, and a block plan of the site. The more accurate information the building operator can provide, the more competitive fee is likely to be.
Typical list of Public Authority buildings requiring a Display Energy
Certificates :-
- Display Energy Certificates for Central and Local Government
- Display Energy Certificates for Civic Theatres (Provided by Local Authority)
- Display Energy Certificates for County, City & District Borough Councils
- Display Energy Certificates for Community Halls
- Display Energy Certificates for Magistrate Courts
- Display Energy Certificates for Day Care Centres
- Display Energy Certificates for Doctors Surgery
- Display Energy Certificates for Fire Stations
- Display Energy Certificates for Leisure centres (Provided by Local Authority)
- Display Energy Certificates for Local Authority Buildings
- Display Energy Certificates for Ministry of Defence (MOD)
- Display Energy Certificates for Ministry of Transport
- Display Energy Certificates for Municipal golf clubhouses
- Display Energy Certificates for Museums & Art Galleries provided by Public Authorities
- Display Energy Certificates for NHS Dentists
- Display Energy Certificates for NHS Hospitals
- Display Energy Certificates for NHS Trusts
- Display Energy Certificates for Nurseries
- Display Energy Certificates for Nursing Homes
- Display Energy Certificates for Police Stations
- Display Energy Certificates for Prisons
- Display Energy Certificates for Public libraries
- Display Energy Certificates for Schools, Colleges, Academies, Universities
- Display Energy Certificates for Statutory Regulatory Bodies
- Display Energy Certificates for Leisure centres, Swimming Pools and Gyms (Provided by Local Authority)
- Display Energy Certificates for Theatres, Community Halls (Provided by Local Authority)
Our Assessors at Low Carbon Energy Assessors (LCEA) Ltd
We are Regulated by the RICS and our Surveyors / Energy Assessors are Security cleared under the (Disclosure and Barring Service (DBS), formerly Criminal Records Bureau (CRB) and Independent Safeguarding Authority (ISA).
We can provide Display Energy Certificates and also give bespoke advice to assist you in cutting energy costs and carbon emissions in your buildings / portfolios. We only allow the highest calibre energy assessors to work with Low Carbon Energy Assessors (LCEA) Ltd.
Request a Display Energy Certificate Quotation

Every moment spent on ESOS compliance is a distraction from your core business activities.
At LCEA Ltd we are knowledgeable and experienced consultants and we can take you on a journey with ESOS beyond simple compliance, maximising cost savings and adding value to the process, making your business more competitive. We are accredited and approved ESOS Lead Assessors.
With numbers of lead ESOS assessors limited, starting early will ensure availability of a quality lead ESOS assessor and ensure you can start making savings sooner and ensure that you comply with ESOS.
Call our team today if you would like to discuss a potential route to ESOS ahead of the next compliance deadline.
It’s not too early to start your pathway to compliance for ESOS Phase 3 and getting you ready for ESOS Phase 4.
If you require any additional information, please do contact our Surveying Department for more assistance on +44 (0)203 504 0135
