Standard Assessment Procedure (SAP 2009)
SAP 2009 information and downloads
The 2009 edition of the Standard Assessment Procedure (SAP 2009) applies from October 2010 for compliance with building regulations in England & Wales (Part L) and in Scotland (Section 6), and from 31 October 2012 in Northern Ireland.
Energy Performance Certificates
SAP 2009 applies to the production of Energy Performance Certificates from 17 April 2011. This applies to all countries and both to new dwellings assessed using SAP and to existing dwellings assessed using RdSAP. The details of RdSAP as it applied up to 31 March 2012 are in the amended SAP 2009 document (see below). A revised version of RdSAP applies from 1 April 2012, for details see here.
Download the SAP 2009 document (October 2010) with amendments for RdSAP 2009 (March 2011)
Download the additional SAP conventions (September 2013)
Approved SAP 2009 software
Download the current list of approved SAP 2009 software (list dated 19 June 2014)
Approved RdSAP 2009 software
Download the current list of approved RdSAP 2009 software (list dated 12 February 2014)
Approved software for Green Deal Occupancy Assessments
Download the current list of approved OA software (list dated 28 April 2014)