Display Energy Certificates

Does Your Property Require a Display Energy Certificate?

A Display Energy Certificate (DEC) is currently required for all public buildings over 250m2 and designed to raise awareness of energy consumption of the building.

The DEC provides a recognised energy rating from efficient A rating to a poorly performing rating of G.  It is a requirement of the DEC that it is displayed on the building in a prominent position so that it is clearly visible to public visitors. The DEC can be no smaller than A3 in size.

  • A DEC is a legal requirement for buildings over 250m2
  • Buildings between 250m2 and 1000m2 the DEC and advisory report are valid for 10 years.
  • For buildings with over 1000m2 of useful floor space the DEC is valid for 12 months and the advisory report is valid for 7 years.


A CSR Sustain DEC Assessment

For buildings with a total usable floor area of over 250m2 that are occupied in whole or part by public authorities or by institutions providing public services we undertake the following:

  • Regulated survey and assessment of the building.
  • Input the data into a software program designed by the Buildings Research Establishment.
  • Produce a draft certificate and report that can then be discussed with the client if required.
  • Issue certificate and lodge at the Landmark Registry.
  • Supply certificate for display.
  • Discuss with you further energy and carbon saving recommendations.


For further details and information on DECs please contact us.

Manchester Office: 0161 762 5670
Email: enquiries@csrsustain.co.uk