The Blewburton Partnership has extensive experience and knowledge throughout the sustainability and energy field. We hope that the following articles will prove useful to your comprehension of this complex subject.

Domestic New Build SAP ratings

Part L1A of the Building Regulations

The Standard Assessment Procedure (SAP) is the official English and Welsh system for rating the energy performance of domestic dwellings. The full formal definition of the SAP energy rating is – ‘A number between 1 and 100+ based on the annual space heating, water heating and internal lighting costs per square metre for the property,

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Posted in Knowledgebase


Part L – Conservation of Fuel and Power in Buildings

The current format of the Buildings Regulations relating to energy in buildings, (Part L) came into force in April 2006 and is due for further amendment and tightening, to be in force by April 2010. The change in 2006 and future projected changes in 2010, 2013 and 2016, aim to significantly reduce the carbon emissions associated with energy use in buildings and will potentially,

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Posted in Knowledgebase


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