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Andrew J Ball

On Construction Domestic Energy Assessor (OCDEA) for new-build home energy SAP ratings, providing On Construction Energy Performance Certificates (OCEPCs)

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Extending A Dwelling
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SAP Ratings Explained
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The following is a list of recommended links to other websites with information relevant to home energy calculation work.


The NHER : National Home Energy Rating - general information on the NHER and SAP home energy rating.


Government Central Register of accredited Home Energy Rating Operatives and Energy Performance Certificates - Central Register


The Energy Saving Trust : Energy Saving Trust - all things energy saving, for individuals, organisations and businesses. Highly recommended - especially the downloadable guidance documents that are written in an easily understandable format.


The Government's Planning Portal for access to copies of the approved documents that provide guidelines for the Building Regulations relating to the Conservation of Fuel and Power - boring (!!!), but necessary...


The Government's Standard Assessment Procedure for Energy Rating of Dwellings 2005 Edition : SAP 2005 - access to a .PDF copy of the full SAP document that describes in detail the approach for SAP calculations.


Accredited construction details - Planning Portal .PDF guidance on achieving air tightness and reducing thermal bridging in dwellings.


Domestic Heating Compliance Guide - ODPM .PDF guide to meeting the requirements of the building regulations for heating and hot water systems.


Constructive Details Handbook - Series of standard construction details produced by BBA / RDL Constructive Details Ltd aimed at reducing thermal bridging and improving airtightness in dwellings.