Display Energy Certificates (DECs)

Display Energy Certificates and the RIBA Plan of Work

What are Display Energy Certificates (DECs)?

Display Energy Certificates (DECs) are required to be displayed in all public buildings with a total useful floor area greater than 250m2. Stroma Built Environment employs a large team of certified DEC Assessors to help our clients and the owners of public buildings to comply with this requirement of the Energy Performance of Buildings Directive (EPBD).

Display Energy Certificates – Why choose Stroma Built Environment?

Stroma Built Environment was the first company to successfully lodge a Display Energy Certificate in compliance with the requirements of the EPBD. Our qualified team of energy assessors has worked with local authorities, sovereign wealth funds, government ministries and the parliamentary estate. We have delivered compliant energy assessments and advice to preserve the energy efficiency of public buildings:

Our DEC Assessment services include:

Conducting an on-site Display Energy Certificate assessment and performing the necessary calculations

Preparing an Advisory Report outlining the opportunities to reduce energy consumption

Lodging the DEC and accompanying Advisory Report on the Landmark Register

Display Energy Certificates and Advisory Reports are required for public buildings which meet the requirements (below) and are occupied in whole or in part by public authorities; or public institutions which provide services to members of the public (and are therefore visited by such individuals). DECs and Advisory Reports can only be produced by a qualified energy assessor.

What are Display Energy Certificates?

Display Energy Certificates are a requirement for all public buildings in order to state the building’s energy efficiency. Previously confined to buildings of 500m² and above, the current legislation states that buildings occupied by public authorities and frequently visited by the public, with a usable floor area of 250m² to 500m² and above must have a valid DEC and Advisory Report (AR). The validity of both documents is required to be 10 years.

The validity period for buildings with 500m² to 1000m² usable floor area is 10 years and for 1000m²+ usable floor area it is 7 years.

First year DECs and all ARs require a site visit. Subsequent DECs can be produced without a site visit, provided the same assessor carries out the work and the building owner confirms that the building has not been altered in any way.

CRC Energy Efficiency Scheme

Display Energy Certificates have a greater significance for organisations, who must comply with the CRC Energy Efficiency Scheme, (formerly known as the Carbon Reduction Commitment). Only by ascertaining actual energy consumption, via a DEC, can such organisations begin monitoring and managing consumption. In doing so a calculation of the exact reductions achieved in terms of both carbon emissions and energy costs can be determined. We provide complementary carbon reduction consultancy to assist organisations in using the DEC as a springboard for meeting targets under the CRC.

What are Display Energy Certificates (DECs)


Request a quote for Display Energy Certificate Assessments

Contact our friendly Estimating Team to request a quote for DEC Assessment services on your public building stock. You can also select to receive information about our complementary testing and assessment services to allow Stroma Built Environment to provide compliance support throughout your project.

Complementary Services