The Standard Assessment Procedure (SAP) is the UK government's recommended method system for measuring the energy rating of residential

dwelling In law, a dwelling (also known as a residence or an abode) is a self-contained unit of accommodation used by one or more households as a home - such as a house, apartment, mobile home, houseboat, vehicle, or other "substantial" structure. The ...

s. The methodology is owned by the Department for Business, Energy & Industrial Strategy, and produced under licence by BRE. The first version was published in 1995, and was replaced by newer versions in 1998, 2001, 2005, 2009, 2012, and 2021. It calculates the typical annual energy costs for space and water heating, and, from 2005, lighting. The CO₂ emissions are also calculated. The SAP runs from 1 to 100+, with dwellings that have SAP>100 being net exporters of energy. SAP 2012 has been used as the basis for checking new dwellings for compliance with

building regulations in the United Kingdom Building regulations in the United Kingdom are statutory instruments or statutory regulations that seek to ensure that the policies set out in the relevant legislation are carried out. Building regulations approval is required for most building wo ...

requiring the conservation of fuel and power since 6 April 2014 in England or 31 July 2014 in Wales. A reduced data version of SAP, RDSAP, is used for existing dwellings. SAP or RDSAP was used to produce the energy report and Energy Performance Certificate in

Home Information Pack Under Part 5 of the Housing Act 2004 a Home Information Pack (HIP, on lowercase letters: hip), sometimes called a Seller's Pack, was to be provided before a property in England and Wales could be put on the open market for sale with vacant possess ...

s (HIPs). A document was published by the UK government in 2007, looking towards SAP and energy standards in the future. A number of comparisons have indicated that SAP does not provide an accurate model for low-energy buildings.Raising the bar
/ref> The Standard Assessment Procedure evolved from the National Home Energy Rating scheme, which was based upon the Milton Keynes Energy Cost Index created for the Energy World demonstration buildings in the 1980s.

References

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External links

Department for Communities . . . ''Building Regulations: Energy efficiency requirements for new dwellings - A forward look at what standards may be in 2010 and 2013''
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