Here come’s the technical bit….
The Statutory Instruments 2012 No. 3118 “The Energy Performance of Buildings (England and Wales) Regulations 2012, PART 3 Display Energy Certificates, states that from the 9th July 2015 buildings occupied by public authorities and frequently visited by the public of more than 250 m2 and less than 500m2 will be required to have a valid Display Energy Certificate (DEC) and Advisory Report (AR). The validity of both these documents will be 10 years.
DECs & Advisory Reports continue to be required for eligible buildings of 500m2 – 1000m2 and are also both valid for 10 years. DECs for buildings of 1000m2 or more remain valid for 1 year and the Advisory Report for 7 years.
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