Building Energy Calculations, SAP's, SBEM's, EPC's & Water Efficiency:

R P Compliance Testing Ltd can provide your building calculations - SAP Ratings, Energy Performance Certificates (EPC's), SBEM's and Water Consumption Certificates.

For domestic properties, the Standard Assessment Procedure (SAP), is used to determine the energy efficiency of the dwelling. SAP ratings range from 1 to 100 and the higher the SAP score, the more energy efficient the building. SAP 2009 came into effect on 1st October 2010 together with the new Part L 2010
Since April 2008 all new dwellings require an 'On Completion Energy Performance Certificate' or 'OCEPC'. SAP 2012 has since replaced 2009, which is the software used (Elmhurst Energy). New homes marketed 'off-plan' before they are physically complete will not have a full Energy Performance Certificate (EPC) but instead have a Predicted Energy Assessment (PEA- see sample below).

All SAP, PEA, EPC and water calculations are created in-house by Lee O'Brien DipOCEA, who is accredited with Elmhurst Energy Ltd.

For non-domestic properties, detailed SBEM calculations are produced at design stage and submitted with a Building Regulation Approval application. Each building requires a separate submission from when the Part L 2010 came into effect on 4th October 2010 and it will usually be necessary to commission a mechanical & electrical specification at an early stage. Similar calculations may be required prior to this for planning purposes and to include carbon off-sets in the design.

If you would more information, to speak to our Elmhurst Accredited Assessors for advice or a quotation, please call our office on 01485 580018

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We are located at:

72 Westgate



PE36 5EP


Contact us today!

If you have any queries or wish to make an appointment, please contact us:


Telephone: 01485 580018 or

01485 533777

Mobile: 07930 970649 or

07990 552792



















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