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DEC scrapped for commercial buildings

But it’s not completely erased from history… DECs are still required for any publicly owned building with a useful floor area bigger than a thousand square metres (which drops to 500sqm in January). This includes schools, hospitals, town halls and prisons.

The requirement for DEC’s on privately owned commercial buildings has never been plain sailing… the date had already been pushed back- originally it was due to launch in 2012.

There has been confusion about how the Display Energy Certificate is different to the more widely known Energy Performance Certificate. It’s understandable, as they look very similar, and both show the building’s energy performance in a banded format where an ‘A’ rating is the best and a ‘G’ rating is the lowest available score.

The key difference is that EPC’s are based on design assumptions and the DEC is based on real fuel bill data. In other words the EPC shows how the building is expected to perform using computer modelling, and the DEC shows how the building actually performs based on real fuel bills.

Another key feature of the Display Energy Certificate is that it should be put on full public display to show off the building’s specific energy rating – the same is not true of the EPC which only sees the light of day during a sale or change of tenancy.

If you own a commercial property of any size, there is nothing to stop you having a DEC completed on your building… the result and certificate would be valid, but the unnecessary cost of having an assessment completed is likely to put all but a handful of people off the idea.

The EPC remains a mandatory document for any building, residential or commercial, which is being sold or leased.

What do you think about this reverse decision from Westminster? We’d be interested to know your thoughts!

Jon Ponting

Author: Jon Ponting

This article was published by Jon Ponting on 11.12.2012.