What is SAP?
The Standard Assessment Procedure (SAP) is the Goverment's
method for measuring the energy rating of residential
It calculates the dwellings CO2 emissions, as well as its
typical annual energy costs for space and watering heating and
New residential buildings must comply with Part L1A of the
Building Regulations, which stipulates that a SAP assessment must
be undertaken, and submitted to Building Control prior to the start
of any works on site. All SAP assessments must be undertaken by
accredited Energy Assessors.